Table 1.
Prevalence of sarcopenia by participant characteristics at baseline.
| Characteristics | Prevalence of sarcopenia, n (%) | p | ||
|---|---|---|---|---|
| No sarcopenia | Possible sarcopenia | Sarcopenia | ||
| Age, mean (SD) | 65.7 (4.73) | 68.7 (6.43) | 72.7 (7.31) | <0.001 |
| Sex | <0.001 | |||
| Man | 1,286 (42.0) | 1,297 (42.4) | 479 (15.6) | |
| Woman | 860 (29.0) | 1,412 (47.6) | 695 (23.4) | |
| Education | <0.001 | |||
| Illiterate | 495 (21.9) | 1,125 (49.8) | 641 (28.4) | |
| Non-formal education | 465 (35.7) | 589 (45.2) | 249 (19.1) | |
| Elementary school | 643 (43.6) | 629 (42.6) | 204 (13.8) | |
| Middle school or above | 543 (54.9) | 366 (37.0) | 80 (8.1) | |
| Marital status | <0.001 | |||
| Married | 286 (21.8) | 627 (47.9) | 397 (30.3) | |
| Unmarried | 1860 (39.4) | 2080 (44.1) | 777 (16.5) | |
| Smoking | 0.006 | |||
| No | 697 (37.8) | 814 (44.1) | 333 (18.1) | |
| Former | 286 (37.9) | 341 (45.2) | 127 (16.8) | |
| Current | 1,159 (34.0) | 1,542 (45.2) | 711 (20.8) | |
| Drinking | <0.001 | |||
| No | 1,325 (32.0) | 1947 (47.0) | 873 (21.1) | |
| Yes | 697 (46.0) | 591 (39.0) | 228 (15.0) | |
| Hukou type | <0.001 | |||
| Agriculture | 1,530 (32.0) | 2,217 (46.3) | 1,041 (21.7) | |
| Non-agriculture | 591 (49.4) | 476 (40.0) | 130 (10.9) | |
| Living residence | <0.001 | |||
| Rural | 1,216 (31.0) | 1836 (46.8) | 867 (22.1) | |
| Urban | 930 (44.1) | 873 (41.4) | 307 (14.6) | |
| Region | <0.001 | |||
| Northeast | 211 (42.2) | 212 (42.4) | 77 (15.4) | |
| East | 710 (37.9) | 822 (43.8) | 343 (18.3) | |
| North | 179 (35.4) | 245 (48.4) | 82 (16.2) | |
| Centre | 348 (36.6) | 422 (44.4) | 181 (19.0) | |
| South | 177 (30.8) | 264 (45.9) | 134 (23.3) | |
| Southwest | 393 (33.2) | 534 (45.1) | 257 (21.7) | |
| Northwest | 128 (29.2) | 210 (48.0) | 100 (22.8) | |
SD, standard deviation.