Source: Global Burden of Disease Study. 9 DALY = disability-adjusted life year While there has been success in increasing provision of maternal health services, gaps in primary and secondary care continue to exist and have led to continued significant private sector use. 12 Also despite the NRHM's focus on lagging regions, decreases in disease burden have not been experienced uniformly across Indian states. After 2000, there has been an increasing disparity across states in overall child disease burden; in higher under-five mortality states, two of the top three leading causes include infectious disease -pneumonia and diarrhoea. 11 immunisation is one of the most cost-effective child health interventions available against infectious disease, 13 yet one-third of Indian child deaths are from vaccine preventable diseases such as pneumonia, diarrheal diseases, measles, and meningitis. 14 Beyond its direct impacts on disease prevention, vaccination is also linked with improved long term health, cognition, and schooling outcomes, reduced antimicrobial resistance, and reduced health expenditure. 15 Even in 2022, child immunisation remains far from universal. In India the full immunisation rate for under two children -vaccination of basic childhood vaccines against -Bacillus Calmette-Guérin (BCG), measles, and three doses each of diphtheria, pertussis, and tetanus (DPT)/Penta and polio vaccine (excluding polio vaccine given at birth)-remains at 76.6% according to a 2019-2021 national survey. 16 In addition to low coverage, failure to vaccinate children at recommended ages has remained a major challenge. In 2013, the proportion of delayed doses among under-5 children ranged from 35% for OPV first dose (OPV1) to 65% for DPT3. 17 Among 10-23 month old children in 2016, the proportion of delayed doses (i.e., more than 28 days after the minimum eligibility age) ranged from 23% for BCG to 35% for the measles vaccine. 18 Timely vaccination is important especially for highly contagious diseases such as measles which can rapidly affect a large number of children and retard long-term immunity against other diseases. 19,20 Furthermore, there are gaps in vaccination across socioeconomic and demographic groups, with female, lower caste and scheduled tribe, non-Hindu, and low-income households having lower vaccination rates than their counterparts in India. 16 There are also
Theoretical and conceptual frameworkThe underlying conceptual framework of the thesis and connections between the chapters are depicted in Figure 1. Chapters 3 and 4 explore how vaccination coverage can currently be improved in India, specifically how supply-related factors may affect vaccination coverage. Vaccination coverage is based on the demand and supply for immunisation, which is guided byIn Chapter 4 we examined the socioeconomic and healthcare quality determinants of coverage rates and timeliness of routine child immunisation in rural India. We also conducted in-depth analyses of the distribution of facility quality and its association with vaccination ...