- Research article
- Open Access
Mother–infant interaction quality and sense of parenting competence at six months postpartum for first-time mothers in Taiwan: a multiple time series design
BMC Pregnancy and Childbirth volume 18, Article number: 365 (2018)
For first-time mothers, not knowing how to interact with newborn infants increases anxiety and decreases the quality of the parent–infant interactions. A substantial lack of interactional knowledge can ultimately limit the adjustments necessary for a stable transition into motherhood. This study investigated how postpartum parenting education influenced first-time mothers’ mother–infant interaction quality and parenting sense of competence.
Eighty-one healthy first-time-mother and infant dyads were recruited. The control group (n = 40) received postpartum care based on the medical and cultural norms practiced in Taiwan, while the experimental group (n = 41) received, on top of typical care, education by way of a 40-min videotape on infant states, behaviors, and communication cues, as well as a handout on play practices. Data were collected at five points: within the first week, and during follow-ups in the first, second, third, and sixth months after birth. We administered the Chinese versions of the Parenting Sense of Competence Scale and Edinburgh Perinatal Depression Scale, and used the Nursing Child Assessment Teaching Scale to score videotaped mother–infant interactions.
We observed an increase in the quality of mother–infant interaction within the experimental group only. Furthermore, at the five assessment points, we observed no significant changes in perceived parenting competence. Among all subjects, there were correlations between postpartum depression scores, parenting competency, and quality of mother–infant interaction.
Our results indicate that first-time mothers in Taiwan who are provided with extra education on infants’ abilities and how to effectively play with infants are likely to exhibit improvements in quality of interaction.
The mother–infant interaction is the first and most important intrapersonal interaction that deeply affected a trust-building relationship in life . It has substantial influences on infants’ language development,  emotional regulation,  and cognitive development [4, 5], while children whose mothers regularly engage in quality interaction with them tend to exhibit a high mental development index at 2 years old . If the parents’ behavior shows strong intent for interaction, it attracts the attention of infants and initiates mutual exchange, response, and participation [7, 8]. In such cases, the infants actively contribute to social engagements and learn from these to anticipate social responses from caregivers . Parent–child interaction is a shared, reciprocal experience within the dyads, whereby the experience of each has an impact on the experience of the other . Effective parent–child interaction requires that both the infant and parent (or caregiver) send clear cues and respond to each other, thus facilitating the development of an interactive environment that continues the interaction [9, 10]. The parent and infant learn to adapt, modify, and change their behaviors in response to the other in every interaction process .
Researchers have determined that educational programs can be helpful means of improving first-time mothers’ abilities to interact with their infants [12,13,14,15,16,17]. Dickie and Gerber indicate that providing information on infant development, temperament, and cues in 4- to 12-month-old infants to their parents during a 16-h class was helpful in understanding the demands of newborns, providing appropriate contingent responses for parents, and producing feedback and increasing behavior predictability for infants . A randomized controlled trial, based on Brazelton’s Neonatal Behavior Assessment Scale (NBAS) intervention, showed that a one-hour video and discussion on the behaviors and status of newborns for first-time mothers, delivered within 1 month postpartum, can increase the quality of mother–infant interactions. The results of this trial are based on the effect of information presented, about the newborn’s competence to interact, on a mother’s sensitive responsiveness toward her infant, thus promoting affectionate handling of the infant and motivating the mothers to become more involved and interact with their infants . Similarly, another study similarly showed that a 45-min educational video on newborn behaviors for first-time pregnant women at 38 weeks’ gestation enhanced the quality of mother–infant interaction during the 24 h following birth. More specifically, the scores for newborns’ sensitivity to cues and socioemotional growth were found to be higher in the experimental group than in the control group that did not watch the video .
Furthermore, postpartum women must not only recover physically, but also, via mother–infant interaction, learn the skills necessary for caring for and identifying with their newborns, consequently developing their maternal role and behavior [19, 20]. The lack of understanding of newborns can increase mothers’ anxiety, thereby influencing mother–infant interaction [12, 21,22,23], maternal confidence [22, 24,25,26], and even mothers’ adaption to the maternal role . Clark and Affonso report that it is exceedingly important for first-time mothers, in the first month after delivery, to deal with the gap in expectations and reality of maternal life, improve their own parenting skills, and establish a good relationship with the newborn .
Parenting sense of competence (PSOC) refers to the subjective feeling of a mothers’ ability to take care of their infants and understand their infants’ needs . For first-time mothers, the most confusing period is 1–2 weeks after discharge from the hospital, after which their self-confidence in motherhood tends to increase [30,31,32,33]. Maternal confidence and ability tends to increase with time after birth, with the highest confidence and ability appearing at 4 months postpartum . Improving mothers’ parenting skills can facilitate and enhance their sense of competence and satisfaction with the maternal role, and can prevent postnatal depression that fostering positive neonates’ psychosocial development . However, PSOC is not related to mothers’ actual parenting abilities [35,36,37].
At 6 months postpartum, the postpartum depression symptoms can interfere with perceived parenting knowledge . Women with postpartum depression showed a lower sense of mother role competence and satisfaction . A Japanese study showed that mothers with higher postpartum depression score were more likely to engage in neglectful or aggressive parenting behaviors . The depressed mothers were likely to show more negative and less positive behavior toward their infants than did the nondepressed mothers . A negative correlation was found between the postpartum depression scores and PSOC [41,42,43] and parent–infant interaction quality [40, 44,45,46].
In Taiwan, women giving birth in the hospital are usually discharged three or 5 days after birth, depending on normal spontaneous delivery (NSD) or cesarean section (C/S). General postpartum care provided by hospitals concentrates on mothers’ physical care, observation of urine and stool, instructed uterine massage, normal change in lochia, perineal douche, postnatal exercises, episiotomy or C/S wound care, neonatal bathing, and treatment of physical problems. In Taiwan, few hospitals provided postpartum care, but even so, postpartum home visits focused on lactation consultation for promoting the breastfeeding behavior. It rarely provided parents the information about how to be sensitive to child’s signals, interpret them, and respond with emotional attunement. Previous studies have primarily focused on parenting stress and maternal confidence in Taiwanese postpartum women [30, 32]. Furthermore, Chinese typically express their emotions in more subtle forms than Western people. Chinese parents rarely praise their children verbally, because their culture encourages modesty and humility. Thus, human cultural factors influence beliefs and expressive behaviors in interaction [5, 47, 48]. Therefore, this study evaluated how mother-infant interactions and parenting competence are affected by a parenting competence education and how they change as the infant matures up to 6 months postpartum in Taiwan.
Study design and population
This study used a single-blind multiple time series design. In Taiwan, when visiting the doctor, pregnant women who come for prenatal examination and postpartum women who come for postnatal 6 weeks examination sit in the same waiting area. The pregnant and postpartum women could share and discuss the information of this study with each other. To avoid affecting the authenticity of the data, we approached the potential participants for the experimental group after the last postpartum woman in the control group had finished her postnatal 6 weeks examination. In other words, after the last participant in the control group had completed her postnatal examination, the experimental group recruitment began.
Study subjects were recruited from a 260-bed medical center in northern Taiwan between August 1, 2010 and February 2, 2012. The inclusion criteria were (1) primiparas; (2) 20–34 years old; (3) normal term and singleton birth; (4) no diagnosed complications of gestational diabetes mellitus, pregnancy-induced hypertension, preterm birth, placental abruption, postpartum hemorrhage, postpartum thrombophlebitis, or perinatal depression; (5) understood and spoke Mandarin or Taiwanese; (6) lived in northern Taiwan; and (7) signed an informed consent form. The necessary sample size was calculated by considering mother–infant interaction score as the primary outcome (Cohen’s d = 0.50) , while incorporating a 10% attrition rate. Given a 90% power and 5% type 1 error, the sample size was 82 dyads. This study received institutional review board (IRB) approval (no. 99-0243B).
This study provided self-compiled CDs and manuals of “Tips on caring for your baby” to the postpartum women in the experimental group. The 40-min content of the CD was modified from the self-instructional video series entitled “Keys to caregiving” on infant, behaviors, communication cues, and state modulation . Then, we translated the sub-titles of the film to Chinese. The content of the manuals mainly introduced the sensory development of newborns aged 0–6 months and summarized the CD’s content.
We conducted the study using two instruments: the Nursing Child Assessment Teaching Scale (NCATS) and the Chinese version of the Parenting Sense of Competence (C-PSOC) Scale. In addition, we collected data from Additional file 1 (Questionnaires A. demographic and background information) and Additional file 2 (Questionnaires B. breastfeeding and baby care practices), and at the same time used the Chinese version of the Edinburgh Perinatal Depression Scale (C-EPDS) to monitor postpartum depression.
The NCATS is a standardized tool for assessing interactions between caregivers and infants aged between 0 to 36 months [11, 16]. The NCATS was widely used in research and clinical practice for families and young children [2, 12, 17, 43, 50]. The NCATS consists of 73 binary items, divided into six subcategories: the caregiver’s sensitivity to cues, response to distress, social-emotional growth-fostering behaviors, and cognitive growth-fostering behaviors; the child’s clarity of cues and responsiveness to caregiver. In addition, the tool captures contingency items, such as the behavior of one member of the dyad affects the response from the other. The scale showed good internal consistency (0.76–0.87) and 4-week test-retest reliability (0.55–0.85) . The Cronbach’s α of caregiver’s and child’s subscales in this study were 0.84 and 0.76, respectively.
The PSOC Scale was developed in 1978  and the C-PSOC Scale. The latter had been validated with 0.85 internal consistency and 0.87 4-week test-retest reliability in a sample of Hong Kong Chinese mothers. Significant correlations with measures of self-esteem (r = 0.60, p < 0.01) and depression (r = − 0.48, p < 0.01) demonstrated good construct validity . The Cronbach’s α of the PSOC Scale in this study was 0.90.
The questionnaires B were developed by the researcher for this study. The questionnaires B was collected from the postpartum mothers who self-reported that they were primary caregivers or not, and recalled how much time they spent to care for and handle with their babies in a week. The content validity was done by five obstetrics experts, who were asked to rate each item based on relevance, clarity, simplicity, and ambiguity on the 5-point Likert scale. The Content Validity Index (CVI) was 0.86–0.94.
The C-EPDS, which was developed by Cox, Holden, and Sagovsky in 1987 , has been validated in a sample of Taiwanese mothers . The Cronbach’s α of C-EPDS in this study was 0.79. The 12/13 cutoff point was used to monitor postpartum depression  in our study. If necessary, the subjects were referred to the psychiatrist for further diagnosis, and if they were diagnosed with postpartum depression, the data collection was stopped and the subjects were excluded.
Experimental procedure and data collection
One researcher identified women from the prenatal and delivery records who met the inclusion criteria and approached them in the postnatal ward at least 3 days after delivery (before they were discharged). Potential participants were first given written and verbal information about the study and then written informed consent was obtained. The mothers who agreed to participate in the study were asked to provide their addresses and phone numbers to contact them for their first visit after discharge. Their contact information was kept confidential for the purpose of the study.
The participants were visited five times – within the first week, the 1st month, the 2nd month, the 3rd month, and the 6th month after delivery – in postpartum nursing centers and/or their homes. Most Taiwanese conduct the ritual ‘Do the months’ (30-day period) after delivery , a form of support for postpartum women that originated in the Chinese culture . Either the woman’s mother or mother-in-law assists her by taking care of her personal needs, helping her care for the newborn baby, taking care of any other children, and doing the housework . Nowadays, around half of the new mothers choose to stay in postpartum nursing centers in northern Taiwan. It is a professional home-like health care facility operated by registered nurses. They provide postpartum services (for about a month) to facilitate the recovery of a postpartum woman and take care of her newborn baby, thus, conducting the ‘Doing the month’ ritual.
Each visit concluded with the administration of the above mentioned self-report questionnaires. The data collection procedure is presented in Fig. 1. When the baby was ready (in quiet alert state), the researcher (first author) introduced the task by giving a toy (rattle, block, or squeak toy) to the mother to play with her baby. We provided a new toy in each visit for hygiene considerations. To assess mother–infant interactions, we videotaped first-time mothers when they introduced new toys to their children and completed the task and when they needed to soothe their children. We videotaped for as long as the mothers interacted with their infants, which ranged from 2 to 16 min, depending on the actual interaction time until the mothers claimed they had done with teaching their infants . The scoring was done by first researcher, certified in the use of NCATS tools (achieved an inter-rater reliability score of 90%). In this study, all toys, missions, and administration were taken and followed from the “Caregiving/Parent–Child Interaction Teaching Manual” as per NCATS protocol .
After videotaping, both the groups were given general postpartum guidance: (1) demo bathing of the baby and umbilical cord care skills, manually expressing breastmilk skills; (2) discussing breastfeeding problems and selection of breastfeeding pumps, to relieve baby gas/red spot on baby’s face; (3) providing the information on adding food to the baby’s diet; (4) listening and providing emotion support. However, there was no discussion of mother–infant interaction or parenting competence in the control group. The data collection procedure was conducted by a specific researcher to reduce the data collection bias and ensure the privacy and safety of videotaped information.
All statistical analyses were conducted using SPSS Statistics 21.0 (IBM Corp., Armonk, NY, USA). The significance level for all tests was 0.05. The independent two-sample t test was used to identify the group differences in normally distributed continuous variables, while the chi-square test was used to determine group differences in categorical variables. The generalized estimating equation (GEE) analysis is a very useful technique when subject attrition threatens the power of longitudinal studies [59, 60]. In this study, we examined the trends in dependent variables, mother–infant interaction (NCATS) and PSOC using the GEE model, and set up “within-subject variable” = time; “covariance matrix” = robust estimator; “working correlation matrix” = exchangeable; “predictors factor” = group, time, and group time; “model” = group, time, group time and propensity scores. The propensity scores were calculated for parents’ age, education, and work status; mothers’ body mass index (BMI) before pregnancy, weight gain during pregnancy, and abortion history; whether the pregnancy was planned; mothers’ parenting knowledge; delivery method; and child’s gender and birth weight.
Eighty-one primiparous mothers (40 in control group and 41 in experimental group) and their newborn infants were recruited for the study. One subject withdrew after 1 month because her mother-in-law held traditional views of parenting, such as newborns do not need much interaction or play. The dropout rate was 1.2%. No mother was referred to the psychiatrist in our study.
In the control group, around 30% of first-time mothers held no religious beliefs and only three mothers had ever had a smoking habit. In the experimental group, 17.3% held no religious beliefs, and two participants previously had smoking and drinking habits, while one still had a smoking habit (about 10 cigarettes per day). The BMI before pregnancy and the weight gain during pregnancy were in the normal range for both the groups. Approximately 93% of the subjects had obtained parenting information during their pregnancy, but none of this education had covered the topics taught in this study. Although infants’ body weight was significantly heavier in the control group than in the experimental group, the other basic characteristics and pregnancy/delivery data did not differ significantly (see Table 1).
Infant care pattern in six months postpartum
Sixty percent of the control group and 65.9% of the experimental group chose a postpartum nursing center or a babysitter to assist in infant care during the first month postpartum. All first-time mothers self-reported that they spent a considerable amount of time on infant care during that first month. The exclusive breastfeeding rate was 58% in control group and 59% in experimental group. After 6 months, the infant care time and exclusive breastfeeding rates had reduced in both groups. There was no difference in infants’ time schedules, caregiving patterns, milk-feeding types, or mothers’ perceived resting frequency across any of the points in time or between groups (see Table 2).
Most Chinese postpartum women undergo food therapy, that is, eating yang foods and avoiding yin foods, and engage in plenty of good rest in order to recover physically in the first month postpartum . Common yang foods include chicken, egg, pig kidney, chicken or fish soup, ginger, and brown sugar. Common yin foods include most fresh fruits and vegetables, ice, and salt . This diet is followed to compensate for the blood loss during childbirth .
Trends in mother–infant interaction quality
Figure 2 shows the results of the NCATS for caregivers and infants (caregivers: (sensitivity to cues, response to distress, social-emotional growth fostering, and cognitive growth fostering; infants: clarity of cues and responsiveness to caregiver). The sensitivity to cues score for caregivers showed a slight decreasing trend in the second (T3) and sixth (T5) months compared to the first week postpartum. Furthermore, the score of social-emotional growth fostering, cognitive growth fostering, and responsiveness to caregiver showed a decrease at 6 months. All the other scores for mother–infant interaction increased over time. Overall, the results indicated that the caregiver scores (Fig. 3a), child scores (Fig. 3b), total scores (Fig. 3c), and contingency scores (Fig. 3d) at the 1st to the 6th month were evidently higher in the experimental group than in the control group.
Trends of the sense of parenting competence
We observed no difference in C-PSOC scores between the control group (mean = 67.28, SD = 10.18) and experimental group (mean = 65.46, SD = 12.56) in the first week (Fig. 3e). The C-PSOC scores then showed a decrease (control group: mean = 65.05, SD = 10.06; experimental group: mean = 63.56, SD = 15.15) at the 1st month, before gradually increasing from the 2nd to the 6th month. At no point were the C-PSOC scores significantly different between the two groups.
Effectiveness on PCI and PSOC
This study evaluated the intervention effect on mother–infant interaction quality and PSOC using a GEE model (Table 3). We found no differences in sensitivity to cues, response to distress, social-emotional growth fostering, cognitive growth fostering, clarity of cues, or responsiveness to caregiver in the first week between the two groups. Notably, caregiver scores, child scores, total scores, and contingency scores for infants in the experimental group did not significantly differ from those in the control group. For the experimental group, a significant increasing trend was observed in sensitivity to cues, social-emotional growth fostering, cognitive growth fostering, clarity of cues, and responsiveness to caregiver, as well as overall caregiver scores, child scores, total scores, and contingency scores at the 1st month, the 2nd month, the 3rd month, and the 6th month. This indicated that receiving postpartum parenting education led to an increase in mother–infant interaction quality among first-time mothers in the 6 months after delivery, except for the aspect of interaction related to response to distress.
The PSOC at baseline in the experimental group was similar to that in the control group. Furthermore, we observed no change in the PSOC in the experimental group between the 1st month and the 6th month, indicating that while the postpartum parenting education appeared to help improve mother–infant interaction quality, it has no effect on the PSOC of first-time mothers. Among all subjects, clear correlations were found between postpartum depression, parenting competency, and quality of mother–infant interaction (see Table 4).
In this study, we evaluated how postpartum parenting education influenced the quality of mother–infant interaction and PSOC in the 6 months after delivery among first-time mothers in Taiwan. The education was evidently helpful in improving overall mother–infant interaction quality during the 6 months after delivery, but it had no effect on the response to distress aspect of that interaction. This result was in accordance with the findings of previous studies indicating that postpartum parenting education is effective in improving mother–infant interaction quality [12,13,14,15, 18, 62, 63]. It should be noted that, while the interaction scores of the mother’s response to infant’s distress in the first and second month after delivery were higher in the experimental group than in the control group, there was no significant difference in the magnitude of the progress between the two groups. A possible reason for this is that first-time mothers must be able to manage infants’ distress, for example, crying, being fussy, or generally upset in everyday life. As such, while the intervention education made the mothers in the experimental group learn these skills sooner, the control group mothers were still accumulating parenting experience during the first month after delivery, including how to respond to infants’ distress; thus, their abilities would not differ substantially from that of the experimental group. Previous studies have similarly found that first-time mothers apparently show improvements in knowledge of caring for newborns in the two–six weeks after birth [31,32,33].
However, when observing the influence of time on mother–infant interaction quality, response to distress showed apparent progress at the 1st month, the 2nd month, the 3rd month, and the 6th month, but there was no significant progress in sensitivity to cues over the assessment period. This suggests that mother–infant interaction quality exhibits positive changes through the accumulation of experience between mothers and infants. More specifically, response to distress showed a rather rapid increase, whereas sensitivity to cues might need greater contact time or special instructions. Recognizing that a child is a person in the environment is considered the basis of personal interaction . Sumner and Spietz report that numerous first-time parents are unable to recognize their newborns’ abilities or interact with their infants as people in their environment . First-time parents become familiar with the characteristics and abilities of their newborns through the process of caregiving [19, 20], which makes them more sensitive to newborns’ behaviors and demands and engage in more appropriate responses, thus improving interaction quality .
Gibaud-Wallston and Wandersman showed that the parenting competence of first-time parents began to increase from about 6 weeks after delivery . Our results showed that postpartum education focusing on infants’ states, behaviors, and communication cues using videos and instruction manuals cannot improve PSOC during in the 6 months after delivery. We found that the lowest PSOC scores in both groups were in the first month postpartum, after which they increased until the third month. This is perhaps because, in the first month, first-time mothers spend considerable amount of time taking care of their children rather than recovering. During the first month home visit, we found that the mothers consistently asked questions about infants’ crying during the nighttime, bowel movements, and breastfeeding, as well as how to adjust infants’ time schedules. Thus, even if first-time mothers might have been thoroughly immersed in the joyful feeling of motherhood, they might have been experiencing feelings of anxiety, frustration, lack of competence, and exhaustion, thus leading to the low PSOC .
Past research has shown that newborns’ mothers were most stressed in the first month postpartum, after which their stress began decreasing as their understanding of infants, mastery of care skills, and perceived ability to care for the infant increased . This result is similar to that of our own study, wherein PSOC in both the experimental and control groups increased over time, beginning from the second month of delivery. Additionally, mothers’ knowledge of newborn care and maternal confidence increased over time. This somewhat consistent with the findings of Wu (2000), who found that providing physical care for newborns, establishing a mother–infant relationship, and instructing first-time mothers on newborns’ conditions and behavioral cues during their discharge from the hospital could improve maternal confidence in the second week of postpartum; however, no difference in maternal confidence was found after the first month . Other studies have also demonstrated similar results: Kuo et al. (2000) show that providing instructions on newborns’ physical care and behavioral status at postpartum can increase maternal confidence in the second week of postpartum,  while Chen (2005) shows that providing instructions on newborns’ development and physical care at 32–34 weeks of pregnancy could enhance maternal confidence at 6 weeks’ postpartum .
Additionally, there was no significant difference between the groups in the magnitude of the change in PSOC between the 1st month and 6th month. Previous studies have emphasized instruction on practical behaviors, such as skills in caring for newborns, as they can facilitate mothers’ self-confidence in their parenting skills and ability to understand infants’ demands. A possible reason for no significant difference in the magnitude of change was the C-PSOC, which evaluates both self-efficacy and self-satisfaction of mothers’ parenting role abilities and is associated more with mothers’ personal feelings, but is not representative of their actual abilities [36, 37]. Influenced by modesty and humility in Taiwanese culture , mothers underestimate themselves and the maternal role achievement needs more time than maternal skills [19, 20]. Additionally, higher depression scores were correlated with lower parenting competence scores and interaction scores. Also, higher interaction scores were correlated with higher parenting competence scores in this study. These results were similar to the previous studies [38, 39].
In this study, we could not randomly assign the participants to the two groups, and approximately 60% of the participants remained in postpartum nursing facilities for the first month. Thus, we employed the propensity score and GEE model for reducing the selection bias and the influence of missing data. Additionally, further study warrants investigations on the impact of mother–infant interaction quality with the total time of using the CDs/manuals and different child sequence.
We also found that first-time mothers usually focused on completing the task rather than giving new toys to their children for exploration, and seldom praised their children. It was found that 93% of the participants obtained information on raising children from relatives, friends, books, and magazines, other mothers, health care personnel, and the internet. Thus, it would seem necessary to educate Taiwanese first-time mothers on how to play with their infants, as well as how to be sensitive to infants’ behaviors. We suggest providing information about newborns’ characteristics, their ability to play with parents and grandparents, and postpartum nursing facilities via the internet as well as through service education.
It was helpful in mother–infant interaction quality when the first-time mothers received the parenting educations on infants’ abilities and how to play with infants during the 6 months after delivery. An apparent progress on response to distress in mother–infant interaction quality was shown at the 1st, 2nd, 3rd, and 6th months, respectively. The lowest PSOC scores in both groups were found in the first month postpartum, after which they increased until the third month. Significant associations found among postpartum depression, parenting competency, and quality of mother–infant interaction in the two groups.
Body mass index
Chinese version of the Edinburgh Perinatal Depression Scale
Chinese version of the Parenting Sense of Competence Scale
Generalized estimating equation
Nursing child assessment teaching scale
Parenting sense of competence
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The authors would like to thank the Chang Gung Memorial Hospital, Taiwan, for financially supporting this research under grants CMRPF1A0031. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The authors also thank Denise Findlay at University of Washington for her help in the NCATS qualification process and CD production.
This study was supported by the Chang Gung Memorial Hospital in Taiwan (CMRPF1A0031). The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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This study received institutional review board (IRB) approval (no. 99-0243B) of Chang Gung Memorial Hospital, Taiwan. All participants signed an informed consent form.
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Chung, F., Wan, G., Kuo, S. et al. Mother–infant interaction quality and sense of parenting competence at six months postpartum for first-time mothers in Taiwan: a multiple time series design. BMC Pregnancy Childbirth 18, 365 (2018). https://doi.org/10.1186/s12884-018-1979-7
- Parenting education
- First-time mothers
- Parent–infant interaction quality
- Parenting sense of competence