Utilization and determinants of adequate quality antenatal care services in India: evidence from the National Family Health Survey (NFHS-5) (2019-21)

BACKGROUND: Pregnancy-related complications and insufficiencies in antenatal care services are leading causes of maternal and infant morbidity and mortality in low-resource settings. However, there has been an undue focus on achieving a minimum number of Antenatal Care (ANC) visits without adequate focus on the factors affecting ANC service utilization. This secondary data analysis from the fifth round of the National Family Health Survey (NFHS-5, 2019-21) was conducted to estimate the coverage of adequate quality ANC service and its determinants in India. METHODS: The study sample included 176,877 women aged 15–49 years who had experienced a pregnancy in the last 5 years. The primary outcome variable was the utilization of ANC services by women during their last pregnancy assessed by the frequency of ANC visits and the quality of ANC services. Quality of ANC service utilisation was categorised as adequate quality, inadequate quality and ≥ 4 ANC visits and, inadequate quality and < 4 ANC visits. We performed multinomial logistic regression and reported relative risk ratio (RRR) along with 95% confidence intervals. We adjusted for sampling weight, clustering, and stratification in the sampling design. RESULTS: The median (IQR) number of ANC visits attended by a woman during her previous pregnancy was 4 (IQR 3–7). A majority (59.25%) of the women reported availing of ≥ 4 antenatal care (ANC) visits during their previous pregnancy while 6.12% of women reported availing no ANC visits in their last pregnancy. Women aged ≥ 30 years were significantly less likely (aRRR 0.73 95% CI 0.66, 0.80) to receive ANC services of inadequate quality, and < 4 ANC visits. Additionally, any exposure to mass media (aRRR 0.69 95% CI 0.66, 0.73), and having health insurance (aRRR 0.71 95% CI 0.68, 0.75) decreased their risk of receiving inadequate quality ANC services and < 4 ANC visits. Women belonging to the richest wealth quintile (aRRR 0.52 95% CI 0.47,0.58) and those with an intended pregnancy (aRRR 0.62 95% CI 0.58 ,0.66) were at significantly lower risk of utilizing inadequate quality ANC services and < 4 ANC visits. CONCLUSION: Although nearly 3 in 5 women in India utilized a minimum mandated ≥ 4 ANC visits during their last pregnancy, only one in five of those received adequate quality of ANC services indicating suboptimal content. However, only one in five women utilized the WHO-mandated ≥ 8 ANC visits for a positive pregnancy experience. Furthermore, 14.3% of the women received ANC services of inadequate quality despite attending ≥ 4 ANC visits in their previous pregnancy. Our study emphasized the importance of the quality of ANC services utilised irrespective of number of ANC visits availed. Efforts should be undertaken to enhance the utilization of antenatal care (ANC) services by implementing media initiatives that aim to raise awareness, particularly among women belonging to disadvantaged population groups. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12884-023-06117-z.