Mothers with intellectual impairment and their 9-month-old infants

Background: Few studies have utilised population-based data to examine the lives of families headed by parents with intellectual impairment. This study examined the health and social context of mothers with intellectual impairment compared with their peers without intellectual impairment, and the 9-month developmental outcomes of their infants. Method: Secondary analysis of the first wave of the United Kingdom's Millennium Cohort Study (MCS). Wave 1 data were collected when the child was 9 months of age and recorded in-depth information of maternal health, the social context in which the families live, and developmental outcomes of the infants. Results: Of the 18189 mothers, 74 (0.4%) were classified as mothers with intellectual impairment. The findings show evidence of widespread disadvantage in terms of social context and poorer self-reported physical health for mothers with intellectual impairment compared with their peers without intellectual impairment. Maternal mental health and the developmental outcomes of their 9-month infants were not markedly different between the two groups. Conclusions: The cross-sectional analyses used in this study shows the differences in the lives of mothers with intellectual impairment and their young infants compared with their peers. Longitudinal analyses across subsequent waves of the MCS will allow protective and risk factors in the early years that influence later developmental outcomes to be identified.