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. 2009 Jul 8;4(7):e6174. doi: 10.1371/journal.pone.0006174

Table 1. Demographics, mean frailty index and mean 3MS cognitive scores.

High Exercise n = 2708 Low/No Exercise n = 2847 Non Respondents at CSHA-2 n = 742
Age, mean (SD) 73.5 (6.2) 75.3 (6.8) 75.4 (6.8)
Exercise (%) 100 0 45.9
Sex (% female) 54.2 63.0 63.8
3MS total score, mean (SD) 91.1 (5.9) 89.7 (6.0) 88.0 (6.0)
Frailty Index at CSHA-1, mean (SD) 0.08(0.06) 0.11(0.09) 0.10 (0.08)