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Table 4 Characteristic of the included studies

From: A systematic review of the relationship between severe maternal morbidity and post-traumatic stress disorder

Authors

Country

Design

Site

Size (follow-up)

Resp. Rate %

Time of recruit-ment

Criteria

Maternal morbidity type (Data source)

PTSD

       

Inclusion

Exclusion

  

Time postnatal

Tool

Admini-stration

Adewuya et al. 2006

Nigeria

Cross-sectional

Multi. clinic. (n=5)

876

95 a

Postnatal

Women attending 6 week postnatal & infant immunisation clinic

None

Hospital admission in pregnancy Manual removal of placenta

Self-report

6 wks

M.I.N.I.

Interview

Ayers 1999 (PhD thesis)

UK

Pros. cohort

Single hospital

245 (201)

70 -83 c (46–56 a)

Antenatal

Gestational age 16≤, ≤ 36 wks at recruitment Good English

ElCS Poor English Other research participation Moving out No fixed address Psychiatric inpatient

Blood loss Delivery complication

Clinical records

1 week 6 weeks 6 mths

IES PSS-SR

Postal

Baecke et al. 2009

Netherlands

Retro. cohort

Single hospital

169

48-76 b or c

Postnatal

Pregnancy complicated by preeclampsia and control groups

Multiple pregnancy

Pre-term preeclampsia Term preeclampsia

Clinical records

6 -18 mths

IES

Postal

Cohen et al. 2004

Canada

Pros. cohort

Multi. hospital (n=6)

198

60-87 b or c

Postnatal

Age≥18 Understand English Delivered a full-term Singleton infant

Poor English Child for adoption Risk of baby (multiple infant, premature, congenanomaly, NICU, death)

maternal complications (PPH, uterine infection UTI, or retained placenta etc.)

Not clear

6-8 wks

DTS

Interview (telephone)

Creedy 1999 (PhD thesis)

Australia

Pros. cohort

Multi. hospital (n=4)

499 (141)

73 b

Antenatal

Age≥18 3rd trimester pregnancy Understand English No major prenatal complication No medical problems healthy full-term infant

Risk of baby (premature, stillbirth) Pregnancy with high risk for birth complications

Delivery complication (PPH, anaemia, infection, severe post-delivery pain or manual removal of placenta etc)

Self-report

4-6 wks 3–4 mths

IES PSS-

Interview (telephone)

Engelhard et al. 2002

Netherlands

Retro. cohort

Single hospital

113

51-90 b

Postnatal

Pregnancy complicated by preeclampsia and control groups Primiparas

Age<18, Illiterate in Dutch Intrauterine fetal death

Pre-term preeclampsia Term preeclampsia

Clinical records

≤ 2 yrs

PSS-SR

Postal

Hoedjes et al., 2001

Netherlands

Pros. cohort

Multi. hospital (n=4)

128 (137)

50-54 a or b

Postnatal

Age≥18 Pregnancy complicated by preeclampsia speaking Dutch

--

Mild preeclampsia: Severe preeclampsia

Clinical records

6 wks 12 wks

SRIP

Postal

Lev-Wiesel et al. 2009

Israel

Pros. cohort

Single hospital

1071

96 c or d

Antenatal

Women >= 5 mths pregnant at the time of recruitment

Women under psychiatric treatment

High-risk pregnancy Delivery complications (CS, preterm delivery or fetal distress etc)

Clinical records Self-report

1 mth 6 mths

PSS-I

Interview (face-to-face/ telephone)

Sorenson & Tschetter 2010

US

Cross-sectional

Commu-nity

71

75 c (53 b)

Postnatal

Listed in phone book Having 'landline' phone numbers

All others who did not meet inclusion criteria

Birth complication:

Not stated

6-7 mths

PTCS

Interview (telephone)

Stramrood et al. 2010

Netherlands

Pros. cohort

Single hospital & single midwifery practice

175 (137)

71-91c

Antenatal

Women hospitalised with preeclampsia or PPROM

Critically ill, multiple pregnancy, A history of intrauterine fetal death, Alcohol/drug dependence Pre-existing medical conditions (eg. diabetes, hypertension, cardiovascular, renal diseases)

Preeclampsia PPROM

Clinical records

6 wks 15 mths

PSS-SR

Interview

Stramrood et al. 2011

Netherlands

Cross-sectional

Multi. Hospital (n=3) Midwifery practice (n=4)

428

47 a or b

Postnatal

Women delivered 2 to 6 months prior to study with >=16 weeks of gestation

--

Pregnancy complications (pre-eclampsia, HELLP, antenatal blood loss or intrauterine death etc) Delivery complications (PPH, manual placenta removal or ICU etc)

Self-report

2-6 mths

TES-B

Web-based

  1. NoteCS: caesarean section; ElCS: elective caesarean section; ICU: intensive care units; NICU: neonatal intensive care units; PPROM: preterm premature rupture of membranes; HELLP: HELLP syndrome.
  2. PPH: postpartum haemorrhage.
  3. Pros: prospective; Retro: retrospective; wks: weeks; mths: months; yrs: years.
  4. ‡ Engelhard (2002) included women’s partner in their study sample, but data on women was only extracted.
  5. † Sample size of postnatal women and response rate at postnatal period.
  6. a) The number of all eligible women, of whom those who took part in the study.
  7. b) The number of women who were approached, of whom questionnaire/interview were actually returned or completed.
  8. c) The number of women who agreed to participate after the researcher approached to them, of whom questionnaires/interview were actually returned or completed.
  9. d) Uncertain how the response rate was calculated.