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Table 1 Baseline characteristics of the supplemented and placebo groups

From: Effect of multivitamin and multimineral supplementation on cognitive function in men and women aged 65 years and over: a randomised controlled trial

Characteristics Supplemented group
(n 456)
Placebo group
(n 454)
Age in years: median (interquartile range) 72 (68.0 – 76.0) 71 (68.0 – 76.0)
Body mass index in kg/m2: mean (SD) 28.2 (4.2) 27.9 (4.1)
Women: n (%) 217 (48) 214 (47)
Current smoker: n (%) 57 (13) 63 (14)
Past or present hypertension: n (%) 188 (41) 172 (38)
Past or present heart disorders: n (%) 137 (30) 130 (29)
Past or present chest disorders: n (%) 86 (19) 87 (19)
Past or present diabetes: n (%) 37 (8) 42 (9)
Past or present cancer: n (%) 46 (10) 46 (10)
Past or present cerebrovascular disease: n (%) 31 (7) 22 (5)
At risk of iron, folate, vitamin C or vitamin D deficiency: n (%) 145 (32) 117 (26)