The Andhra Pradesh Children and Parent Study (APCAPS) is a large prospective, intergenerational cohort study in Southern India that began with the long-term follow-up of the Hyderabad Nutrition Trial (1987-1990). It is situated in 29 villages near the city of Hyderabad in Ranga Reddy district, Andhra Pradesh.

The Hyderabad Nutrition Trial evaluated the Integrated Child Development Services (ICDS) scheme, a national community outreach program, which provides a daily food supplement to pregnant women and children under 6 years of age. The trial used a controlled stepped wedge design, recruiting pregnant women from 29 villages (15 intervention – with program; 14 controls – awaiting implementation) and followed them through to childbirth.

In 2003-5, trial households were retraced and surveyed: families with at least one child born during the trial period and still alive in 2003-05 became the APCAPS prospective cohort (1815 families, 2601 index children). At this time, a first wave (W1) of data collection was carried out on index children and their mothers. The index children were then re-examined as young adults (aged 18-23 years) in 2009-10 (the second wave, W2) and then again in 2010-12 (the third wave, W3) when their siblings and parents were also examined. A socio-demographic household survey of all residents in all 29 villages was completed between 2012 and 2014.

The original study (1969-73) had five main objectives: (i) to study the relationship of birth weight (BW) and gestational age (GA) to infant mortality and the incidence of congenital defects; (ii) to study maternal blood pressure before and during pregnancy and the incidence of toxaemia; (iii) to assess the effects of parental consanguinity on reproductive outcomes; (iv) to examine the impact of family planning programmes on fertility and (v) to estimate rates of foetal loss, and neonatal, infant and early childhood mortality.1 The subsequent follow-up studies focused on the effects of prenatal factors BW and GA on physical growth and development and mortality during childhood and adolescence.

For the follow-up in young adulthood (1998-2002), the main objective was to study glucose tolerance, insulin resistance and insulin secretion and a range of cardiovascular risk factors (body composition, blood pressure and plasma lipid concentrations) in relation to parental size, neonatal size and childhood growth.

Aims & objective

  • To find out the known as well as some new factors which increase the risk of occurrence of stroke (half body paralysis, Lakwa) and of memory problem and other brain related problems.
  • To identify a group of apparently healthy people (50 years and above), carry out their health check up and follow them up over several years to detect any health problems (like heart attack, lakwa, memory problems) with increasing age.
  • To investigate the prevalence and incidence of and risk factors for stroke and cognitive decline in the elderly.

Updates about the health of the participants will be obtained from telephone follow-ups every six months and physical check-ups every three years. The study is expected to last for at least 10 years.

Last update – 02/02/2017

The main objective of the Longitudinal Ageing Study in India (LASI) is to provide comprehensive longitudinal evidence base on health, social and economic wellbeing of elderly population in India.

LASI main wave’s covers 30 states and 6 union territories of India covering a panel sample size of 60,250 elderly persons aged 45 years and above. The long-term goal of LASI is to continue this survey for the next 25 years with the first wave planned in the year 2016-17 and second wave in 2018-19. LASI aims to obtain all the indicators for each of the 30 states and 6 union territories. In addition, LASI aims at obtaining indicators for each of the four metropolitan cities of Delhi, Kolkata, Mumbai and Chennai.

Last update – 10/02/2017