Data sources
Four quantitative data sources were analysed in this paper. Two comprised secondary analyses of statewide data: 1) the most recently available National Family Health Survey (NFHS-5) 2019–21 for Telangana; and 2) state health management information system (HMIS) data for 2019–20. Two were from primary data collection undertaken in 2019–20 in the context of formative research for a quality improvement intervention [13] in selected districts of Telangana: 3) a facility survey; and 4) observations of ANC consultations.
We adapted the WHO quality of care framework for ANC [9], situating the four data sources to show how we were capturing different components of the framework (Fig. 1).
Data collection
NFHS-5 (2019–21)
The NFHS-5 was a nationally representative household survey using a multi-stage, cluster sampling design and providing national, state-level and district-level estimates of household and individual characteristics and reproductive health measures, amongst other topics. All women aged 15–49 in the selected households were eligible for interview. Data collection in Telangana was conducted from June to November 2019 [11]. Questions on ANC were asked of the pregnancy resulting in the most recent live birth in the five years before the survey.
HMIS
India’s Ministry of Health and Family Welfare (MoHFW) collects routine HMIS data primarily from public sector healthcare facilities, including monthly service delivery statistics [14]. In Telangana, HMIS data are digitally tracked by auxiliary nurse midwives at sub-centres and reported to their respective PHCs, which upload the aggregated data to the district level. Telangana aggregate HMIS data were obtained from the Commissionerate of Health and Family Welfare (CHFW) for ANC service delivery information for the period of April 2019 to March 2020.
Facility survey and ANC observations
Primary data collection was conducted in randomly-selected primary care level health facilities within five districts of Telangana (Medak, Rangareddy, Siddipet, Vikarabad and Yadadri Bhuvangiri). A list of public sector facilities was obtained from the CHFW for each district in Telangana. Facilities < 100 min driving time from the CHFW office in Hyderabad constituted the sampling frame. The sampling frame was then stratified by the facility level (sub-centres and PHCs) and two PHCs were selected at random from each of the five districts. Under these two PHCs, we randomly selected one associated sub-centre (total of two sub-centres in each district). After obtaining permission from the district health authorities, two trained research scientists visited the selected health facilities, and conducted the facility surveys and ANC observations.
A facility survey was conducted in 19 health facilities: 10 sub-centres and 9 PHCs. During data collection, one PHC selected from Yadadri Bhuvangiri was discovered to have been upgraded to a community health centre and was excluded from this study. The survey used a tailored ANC infrastructure assessment tool, adapted from the Service Provision Assessment facility inventory questionnaire [15]. The survey was administered using paper-based questionnaires by a trained researcher (KRKR) who obtained written informed consent and conducted interviews with the facility manager and the most knowledgeable staff person available for each health service area.
ANC observations were undertaken opportunistically at the selected study facilities; if a pregnant woman attended for ANC on the day the study team visited the facility, then the woman and the healthcare provider were asked to consent to have the ANC visit observed by a clinically-trained researcher (RV). ANC observations were guided by a checklist of routine activities based on relevant WHO and MoHFW of India guidelines and on a clinical observation tool previously used to assess routine childbirth care in Uttar Pradesh [16]. The ANC observation checklist covered activities that should be conducted either at the first or subsequent ANC consultations. The checklist was used to understand the process of care, how was it provided and how clinical notes and documentation of the ANC visit were captured in the client’s and facility records. The paper-based facility survey and ANC observation forms were double entered into Microsoft Access to ensure accuracy.
Data analysis
NFHS-5 (2019–21)
All women aged 15–49 with a live birth in the survey’s five-year recall period living in Telangana were included in the analysis. For the pregnancy leading to the most recent live birth, we examined women’s self-report of the location(s) of their ANC, number of visits, timing (in months) of their first ANC visit, and the components of care received. These components included whether the woman was told about pregnancy complications, had her weight measured, abdomen examined, BP measured, and urine or blood samples taken during any of her ANC visits. We calculated the number of pregnant women who reported four or more ANC visits and those who reported eight or more ANC visits. Women who reported visiting any government health facility or government outreach programme (such as village clinic with auxiliary nurse midwives) were considered to have received ANC from a public sector facility. We additionally examined a subset of women who reported receiving ANC from a public PHC or sub-centre to facilitate comparisons to the other data sources. Less than 0.01% of women with a live birth were missing the number of ANC visits (n = 7); these were assumed to have had fewer than four visits. Two women were missing the timing of their first ANC visit and were assumed to have had their first visit after 4 months gestation. There was no other missing data in the analysis. The NFHS uses a multi-stage cluster sampling strategy, which we accounted for in statistical analyses.
HMIS
Due to likely underreporting from private sector facilities [14], we included only public sector service statistics in this analysis. All pregnant women registered for ANC seeking care from a public sector facility were included in the analysis. We extracted statewide service statistics from the 2019–20 report for total number of pregnant women registered for ANC, and amongst pregnant women registered we calculated the proportion who registered within the first trimester (up to 12 weeks gestation), received 4 + ANC visits, tested for blood sugar using oral glucose tolerance test (OGTT), received haemoglobin (Hb) tests four or more times in ANC, diagnosed with severe anaemia (Hb < 7), tested for syphilis, and diagnosed sero positive for syphilis. Amongst those with severe anaemia or syphilis, we also assessed the proportions who were treated.
Facility survey
We used survey data from 19 facilities, stratified by facility type, to look at two main domains: ANC basic equipment and ANC key services, reporting on the percentage of facilities that had an item within each domain, as well as the mean total score. For ANC basic equipment, we checked for the availability of a total of eight items of equipment required in delivery of routine ANC services: examination bed, measuring tape, height rod, examination light, BP measuring apparatus, stethoscope, fetoscope, and adult weighing scale. The functionality was also checked for five of the eight listed items (examination light, BP apparatus, stethoscope, fetoscope and adult weighing scale). For the ANC key services, or the infrastructure and processes to provide quality ANC, we evaluated whether ten key services were routinely offered and whether their associated equipment and commodities were available, functioning and, if relevant, had valid expiration dates. The services checked included iron and folic acid supplementation, tetanus toxoid vaccination, biochemical investigations (urine protein, blood/urine glucose, anaemia, and syphilis testing), routine measurements (weight, BP), and whether counselling was offered on eight core topics (minimum four visits, birth preparedness, planning transportation for delivery, family planning, breastfeeding, newborn care, postnatal care visits, healthy eating and physical activity). For a facility to be considered to offer an item within the ANC key services, they had to report that they provided the service and, where necessary, had the appropriate equiptment and supplies available.
ANC observations
We used data from 36 observations of ANC visits: 16 at sub-centres and 20 at PHCs. We assessed how well components of ANC were delivered by the healthcare providers by looking in detail at four domains: 1) respectful care (kind greeting, offered a seat, asked woman if she had any questions, discussed physical exam and washed hands with soap if undertaking a physical exam); 2) physical examination (BP, weight, fundal height, pallor, foetal heartbeat, oedema, foetal lie/presentation, pulse rate, respiratory rate and jaundice); 3) current symptom assessment (asked about decreased foetal movement, severe abdominal pain, persistent vomiting, severe difficulty breathing, vaginal bleeding, frequent painful urination, foul smelling vaginal discharge, swollen face or hands, headaches or blurred vision, woman’s mental health, palpitations, convulsions/loss of consciousness and fever); and 4) education (informed woman of pregnancy progress, counselled on danger signs, discussed nutrition and healthy eating, discussed next ANC visit details and counselled on birth preparedness).
Within each domain, key items from the observation checklist were identified by two clinically trained researchers. Items were tabulated to assess frequency of performance of routine activities. We excluded items not expected to be done at every visit. We restricted analysis for items that should be performed after 22 weeks gestation [10] to the observations of women who were at 22 weeks gestation or greater (assessment of fundal height, foetal heartbeat and foetal lie/presentation and asking about decreased foetal movement). To judge healthcare providers’ performance as an element of quality of care [9], we also examined nine indicators of good practice for measuring BP in the ANC observation tool: asked if patient had tea/coffee, back supported during measurement, feet rested, measurement taken on the left arm, arm rested, sleeve rolled-up, cuff band 1-2 cm above elbow, cuff at heart level, and deflation rate no more than 2–3 mm Hg/s [17,18,19]. We also reported the percentage of ANC consultations where the woman was tested, or referred for a test, for proteinuria, haemoglobin, blood/urine glucose and syphilis testing.