Diet in childhood and adult cardiovascular and all cause mortality: the Boyd Orr cohort

Abstract

Objective: To examine the association between childhood diet and cardiovascular mortality.

Design: Historical cohort study.

Setting: 16 centres in England and Scotland.

Participants: 4028 people (from 1234 families) who took part in Boyd Orr's survey of family diet and health in Britain between 1937 and 1939 followed up through the National Health Service central register. EXPOSURES STUDIED: Childhood intake of fruit, vegetables, fish, oily fish, total fat, saturated fat, carotene, vitamin C, and vitamin E estimated from household dietary intake.

Main outcome measures: Deaths from all causes and deaths attributed to coronary heart disease and stroke.

Results: Higher childhood intake of vegetables was associated with lower risk of stroke. After controlling for age, sex, energy intake, and a range of socioeconomic and other confounders the rate ratio between the highest and lowest quartiles of intake was 0.40 (95% confidence interval 0.19 to 0.83, p for trend 0.01). Higher intake of fish was associated with higher risk of stroke. The fully adjusted rate ratio between the highest and lowest quartile of fish intake was 2.01 (95% confidence interval 1.09 to 3.69, p for trend 0.01). Intake of any of the foods and constituents considered was not associated with coronary mortality.

Conclusions: Aspects of childhood diet, but not antioxidant intake, may affect adult cardiovascular risk.

Figure 1

Childhood fat and saturated fat intake and coronary heart disease mortality in the Boyd Orr survey of diet and health in pre-second world war Britain (1937 to 1939). *Adjusted for age, energy, and sex; †also adjusted for childhood family food expenditure, father’s social class, district of residence as a child, period of birth, season when studied as a child, and Townsend score for current address or place of death; ‡p value for linear test for trend, obtained by entering the quartiles as continuous terms. All models control for within-family clustering of diet by using the cluster option in Stata. Rate ratio and confidence interval (CI) were calculated using Poisson regression.

Figure 2

Childhood vegetable and fish intake and stroke mortality in the Boyd Orr survey of diet and health in pre-second world war Britain (1937 to 1939). *Adjusted for age, energy, and sex; †also adjusted for childhood family food expenditure, father’s social class, district of residence as a child, period of birth, season when studied as a child, and Townsend score for current address or place of death; ‡p value for linear test for trend, obtained by entering the quartiles as continuous terms. All models control for within-family clustering of diet by using the cluster option in Stata. Rate ratio and CI were calculated using Poisson regression.