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Table 1 Descriptive summary of participants in the current study, stratified by change in frailty

From: Epigenetic age is associated with baseline and 3-year change in frailty in the Canadian Longitudinal Study on Aging

  Total
(N = 1446)
Age 63 (10.3)
Sex
F 732 (50.6%)
M 714 (49.4%)
Education
Post-secondary 1224 (84.6%)
Secondary 141 (9.8%)
< Secondary 81 (5.6%)
Income
> 100 K 478 (33.1%)
50–100 K 445 (30.8%)
20–50 K 352 (24.3%)
< 20 K 93 (6.4%)
Missing 78 (5.4%)
Smoking status
Never 653 (45.2%)
Former 631 (43.6%)
Current 161 (11.1%)
Missing 1 (0.1%)
Fruit/veg. consumption
4+ 783 (54.1%)
2–3 436 (30.2%)
< 2 139 (9.6%)
Missing 88 (6.1%)
Physical activity score 139 (74.5)
 Missing 93 (6.4%)
Frailty index (baseline) 0.141 (0.0749)
 Missing 3 (0.2%)
Frailty index (3-year) 0.142 (0.0766)
 Missing* 179 (12.4%)
  1. Continuous data presented as the average (standard deviation) and categorical data as the count (frequency). * includes participants that did not provide any data at follow-up (n = 126), and those in which greater that 10% of frailty index items were missing (n = 53)