Table 1 shows the distribution of non-dietary variables and vitamin supplement intake across quintiles of total protein intake, expressed as a % of energy.
Increasing protein intake was positively associated with higher education and physical activity,
and inversely associated with the proportion of current smokers and intakes of alcohol > 14 g/d (approximately one drink),
Slight or no associations were observed with body mass index (BMI), WHR, multi- or vitamin E supplement intake, hypertension and postmenopausal hormone use.