Participant characteristics of disability and non-disability
| Variable | Non-disability N=1352 | Disability N=482 | Total N=1834 | p Value |
|---|---|---|---|---|
| Continuous, mean (SD) | ||||
| Age (years) | 69.79 (6.92) | 71.94 (7.17) | 70.36 (7.04) | <0.001 |
| Systolic BP (mm Hg) | 138.89 (21.38) | 138.79 (22.39) | 138.87 (21.63) | 0.933 |
| Diastolic BP (mm Hg) | 70.99 (12.90) | 69.58 (13.53) | 70.63 (13.07) | 0.055 |
| Serum total cholesterol (mg/dL) | 207.42 (37.38) | 209.19 (45.31) | 207.89 (39.61) | 0.401 |
| LDL (mg/dL) | 129.84 (34.26) | 125.12 (36.00) | 128.62 (34.76) | 0.086 |
| HDL (mg/dL) | 52.78 (16.04) | 52.21 (16.49) | 52.63 (16.15) | 0.506 |
| CRP (mg/dL) | 0.45 (0.68) | 0.64 (1.11) | 0.50 (0.82) | <0.001 |
| Serum total bilirubin (μmol/L) | 11.42 (4.49) | 10.68 (3.90) | 11.23 (4.35) | 0.001 |
| Serum glucose (mg/dL) | 102.67 (33.43) | 107.55 (41.68) | 103.96 (35.83) | 0.010 |
| Serum albumin (g/dL) | 4.29 (0.27) | 4.24 (0.30) | 4.27 (0.30) | <0.001 |
| Categorical, N (%) | ||||
| Male | 808 (50.3) | 85 (37.3) | 893 (48.7) | <0.001 |
| Non-Hispanic white | 827 (61.2) | 292 (60.6) | 1119 (61.0) | 0.820 |
| Hypertension | 894 (66.1) | 342 (71.0) | 1236 (67.4) | 0.052 |
| Diabetes mellitus | 215 (15.9) | 107 (22.2) | 322 (17.6) | 0.002 |
| Stroke | 56 (4.2) | 37 (7.7) | 93 (5.1) | 0.002 |
| Heart disease | 188 (13.9) | 119 (24.7) | 307 (16.7) | <0.001 |
| CAD | 93 (6.9) | 51 (10.8) | 144 (8.0) | 0.007 |
| Smoking | 149 (11.0) | 60 (12.4) | 209 (11.4) | 0.397 |
| Cognitive impairment | 293 (18.2) | 81 (35.5) | 374 (20.4) | <0.001 |
| Marital status, N (%) | 0.019 | |||
| Married | 1010 (65.5) | 118 (55.9) | 1128 (64.3) | |
| Widowed | 318 (20.6) | 66 (31.3) | 384 (21.9) | |
| Divorced | 131 (8.5) | 14 (6.6) | 145 (8.3) | |
| Separated | 27 (1.7) | 2 (0.9) | 29 (1.7) | |
| Never married | 37 (2.4) | 7 (3.3) | 44 (2.5) | |
| Living with partner | 19 (1.2) | 4 (1.9) | 23 (1.3) | |
| Number of prescription medications taken, N (%) | <0.001 | |||
| <5 | 974 (77.8) | 126 (61.2) | 1100 (75.4) | |
| ≥5 | 278 (22.2) | 80 (38.8) | 358 (24.6) | |
BP, blood pressure; CAD, coronary artery disease; CRP, C-reactive protein; HDL, high-density lipoprotein; LDL, low-density lipoprotein.