Table 1 Demographic characteristics of participants by frailty level
From: Frailty, nutrition-related parameters, and mortality across the adult age spectrum
Characteristics | Frailty index score | |||
|---|---|---|---|---|
≤ 0.1 N = 5119 | > 0.1 to 0.2 N = 2009 | > 0.2 to 0.3 N = 1014 | > 0.3 N = 888 | |
Age (year), mean ± SD | 39.7 ± 13.2 | 54.8 ± 15.8 | 62.8 ± 14.5 | 65.3 ± 14.4 |
Sex, female, N (%) | 2540 (48.3) | 1114 (58.7) | 529 (56.2) | 504 (60.9) |
Race, N (%) | ||||
 Non-Hispanic White | 2478 (70.4) | 1112 (75.6) | 611 (79.9) | 493 (73.1) |
 Non-Hispanic Black | 1057 (10.6) | 409 (10.8) | 196 (10.7) | 212 (15.1) |
 Hispanic | 1356 (13.5) | 416 (8.8) | 179 (5.5) | 144 (5.8) |
 Other | 228 (5.5) | 72 (4.7) | 28 (4.0) | 39 (5.9) |
Education, N (%) | ||||
 Less than high school | 1193 (14.3) | 614 (19.5) | 384 (27.6) | 386 (33.1) |
 High school | 1195 (24.4) | 513 (27.4) | 277 (30.3) | 211 (29.3) |
 Some college/associated education | 1560 (32.7) | 528 (31.1) | 226 (26.4) | 204 (27.6) |
 College graduate or more | 1167 (28.6) | 352 (22.0) | 127 (15.7) | 80 (10.0) |
Annual household Income (USD), N (%) | ||||
 0–19,999 | 802 (11.1) | 478 (18.2) | 335 (27.3) | 385 (39.2) |
 20,000–44,999 | 1533 (27.0) | 686 (33.0) | 354 (38.3) | 266 (34.6) |
 45,000–74,999 | 1149 (26.2) | 391 (25.6) | 143 (21.2) | 120 (18.4) |
 ≥ 75,000 | 1336 (35.7) | 335 (23.3) | 107 (13.2) | 55 (7.8) |
Marital status, N (%) | ||||
 Married | 3376 (67.8) | 1245 (65.4) | 569 (59.9) | 402 (50.0) |
 Widowed | 129 (1.9) | 280 (10.7) | 225 (16.8) | 260 (24.2) |
 Divorced or separated | 500 (10.2) | 294 (14.8) | 154 (16.7) | 164 (18.7) |
 Never married | 1110 (20.2) | 190 (9.1) | 65 (6.6) | 61 (7.2) |
Full-time working, N (%) | 3819 (80.7) | 882 (53.4) | 214 (28.1) | 72 (11.7) |
Smoking status, N (%) | ||||
 Never | 2864 (53.5) | 988 (47.4) | 411 (40.1) | 377 (41.2) |
 Former | 1021 (20.5) | 600 (29.7) | 414 (38.1) | 346 (37.7) |
 Current | 1234 (26.0) | 421 (22.9) | 189 (21.8) | 165 (21.1) |