Table 1 Participant characteristics at baseline
Full sample (n = 5643) | Males (n = 2931) | Females (n = 2712) | ||||
|---|---|---|---|---|---|---|
Variable | n | % | n | % | n | % |
Age, mean (SD) | 72.40 (5.51) | – | 72.39 (5.52) | – | 72.41 (5.49) | – |
Race | ||||||
Non-white | 220 | 3.9 | 142 | 4.8 | 78 | 2.9 |
White | 5423 | 96.1 | 2789 | 95.2 | 2634 | 97.1 |
Smoking status | ||||||
Never | 2535 | 44.9 | 1146 | 39.1 | 1389 | 51.2 |
Former | 2880 | 51.0 | 1643 | 56.1 | 1237 | 45.6 |
Current | 228 | 4.1 | 142 | 4.8 | 86 | 3.2 |
Alcohol consumption | ||||||
Heavy drinker | 116 | 2.1 | 79 | 2.7 | 37 | 1.4 |
Moderate drinker | 1000 | 17.7 | 411 | 14.0 | 589 | 21.7 |
Light drinker | 2855 | 50.6 | 1746 | 59.6 | 1,109 | 40.9 |
Non-drinker | 1672 | 29.6 | 695 | 23.7 | 977 | 36.0 |
Diet quality scorea | ||||||
Quintile 1 (worst) | 1203 | 21.3 | 737 | 25.2 | 466 | 17.2 |
Quintile 2 | 1228 | 21.8 | 668 | 22.8 | 560 | 20.7 |
Quintile 3 | 924 | 16.4 | 451 | 15.4 | 473 | 17.4 |
Quintile 4 | 1309 | 23.2 | 646 | 22.0 | 663 | 24.4 |
Quintile 5 (best) | 979 | 17.3 | 429 | 14.6 | 550 | 20.3 |
Marital status | ||||||
Single | 307 | 5.4 | 111 | 3.8 | 196 | 7.3 |
Divorced/separated | 715 | 12.7 | 248 | 8.5 | 467 | 17.2 |
Widowed | 904 | 16.0 | 231 | 7.9 | 673 | 24.8 |
Married/common law | 3717 | 65.9 | 2341 | 79.8 | 1376 | 50.7 |
BMI, mean (SD) | 27.27 (4.62) | – | 27.42 (3.98) | – | 27.10 (5.21) | – |
Employment | ||||||
Unemployed | 3143 | 55.7 | 1592 | 54.3 | 1551 | 57.2 |
Employed | 2500 | 44.3 | 1339 | 45.7 | 1161 | 42.8 |
Comorbidity burden scoreb, mean (SD) | 1.45 (0.76) | – | 1.30 (0.69) | – | 1.61 (0.79) | – |
Baseline CES-D score, mean (SD) | 4.59 (4.04) | – | 4.01 (3.65) | – | 5.22 (4.35) | – |