Study objective-To study the association between reported milk consumption and cardiovascular and all cause mortality. Design-A prospective study of 5765 men aged 35-64 at the time of examination. Setting-Workplaces in the west of Scotland between 1970 and 1973. Participants-Men who completed a health and lifestyle questionnaire, which asked about daily milk consumption, and who attended for a medical examination. Main results-150 (2.6%) men reported drinking more than one and a third pints a day, Some 2977 (51.6%) reported drinking between a third and one and a third pints a day and 2638 (45.8%) reported drinking less than a third of a pint a day. There were a total of 2350 deaths over the 25 year follow up period, of which 892 deaths were attributed to coronary heart disease. The relative risk, adjusted for socioeconomic position, health behaviours and health status for deaths from all causes for men who drank one third to one and a third pints a day versus those who drank less than a third of a pint was 0.90 (95% CI 0.83, 0.97). The adjusted relative risk for deaths attributed to coronary heart disease for men who drank one third to one and a third pints a day versus those who drank less than one third of a pint was 0.92 (95% CI 0.81, 1.06). Conclusions-No evidence was found that men who consumed milk each day, at a time when most milk consumed was full fat milk, were at increased risk of death from all causes or death from coronary heart disease. (J Epidemiol Community Health 2001;55:379-382) The eVects on population health of increased intake of milk are uncertain. In the first half of this century increased milk production and consumption was encouraged, particularly in children, as it was believed to improve vitality and shown to increase growth in children. After the second world war the epidemic of coronary heart disease (CHD) and the accumulating evidence that increased saturated fat intake, by increasing blood cholesterol levels, increased risk of coronary disease, 2 3 led to a review of policy. Increasingly, in recent years, the public has been encouraged both to reduce their milk intake and to switch to low fat milk products in order to reduce their fat consumption. 4 Recent studies, however, have suggested that increased fat intake may be protective for stroke.
5Ecological analyses have shown high correlations between milk intake and coronary mortality rates 6 7 (which tend to be at least as strong as those observed for saturated fat). The focus of many observational studies on dietary constituents rather than food items means that the individual based data available on milk and cardiovascular risk are limited. Given the relative lack of prospective data on the association between milk intake, CHD and other diseases we have analysed the association between milk intake and mortality in a large cohort of men in the west of Scotland on whom we have detailed information regarding important potential confounding factors.
MethodsThis analysis is based on a cohort of 5765 men aged 35-64 at the ...