Table 1.
Baseline characteristics of participants with different categories of flexibility (n = 9453)
| Characteristics | Low flexibility | Middle flexibility | High flexibility | P value |
|---|---|---|---|---|
| Total participants | 3099 | 3181 | 3173 | |
| Age (years) | 62.4 ± 7.6 | 61.6 ± 7.3 | 60.9 ± 6.9 | <0.001 |
| Age groups, n (%) | <0.001 | |||
| 50–59 | 1200 (38.7) | 1331 (41.8) | 1379 (43.5) | |
| 60–69 | 1282 (41.4) | 1340 (42.1) | 1410 (44.4) | |
| 70–80 | 617 (20.0) | 510 (16.0) | 384 (12.1) | |
| Sex, n (%) | 0.999 | |||
| Male | 1274 (41.1) | 1306 (41.1) | 1304 (41.1) | |
| Female | 1825 (58.9) | 1875 (58.9) | 1869 (59.0) | |
| Fat mass index (kg/m2) | 7.2 ± 2.4 | 6.8 ± 2.5 | 6.5 ± 2.3 | <0.001 |
| Fat mass index category, n (%) | <0.001 | |||
| Fat deficit | 244 (7.9) | 356 (11.2) | 356 (11.2) | |
| Normal | 1716 (55.4) | 1841 (57.9) | 1993 (62.8) | |
| Excess fat | 1017 (32.8) | 893 (28.1) | 767 (24.2) | |
| Obese | 122 (3.9) | 91 (2.9) | 57 (1.8) | |
| Residential area, n (%) | ||||
| Lanxi rural | 348 (11.2) | 384 (12.1) | 411 (13.0) | 0.048 |
| Lanxi urban | 550 (17.8) | 628 (19.7) | 598 (18.9) | |
| WELL‐China | 2201 (71.0) | 2169 (68.2) | 2164 (68.2) | |
| Smoking status, n (%) | ||||
| Never | 2231 (72.0) | 2257 (71.0) | 2284 (72.0) | 0.417 |
| Ever | 260 (8.4) | 250 (7.9) | 247 (7.8) | |
| Current | 526 (17.0) | 604 (19.0) | 567 (17.9) | |
| Unknown | 82 (2.7) | 70 (2.2) | 75 (2.4) | |
| Drinking status, n (%) | 0.465 | |||
| Never | 1679 (54.2) | 1676 (52.7) | 1644 (51.8) | |
| Ever | 81 (2.6) | 79 (2.5) | 82 (2.6) | |
| Current | 1262 (40.7) | 1359 (42.7) | 1376 (43.4) | |
| Unknown | 77 (2.5) | 67 (2.1) | 71 (2.2) | |
| Physical activity, n (%) | <0.001 | |||
| Low | 1575 (50.8) | 1585 (49.8) | 1405 (44.3) | |
| High | 1415 (45.7) | 1507 (47.4) | 1647 (51.9) | |
| Unknown | 109 (3.5) | 89 (2.8) | 121 (3.8) | |
| Education levels, n (%) | 0.439 | |||
| Elementary | 1045 (33.7) | 1146 (36.0) | 1101 (34.7) | |
| Secondary | 1683 (54.3) | 1692 (53.2) | 1726 (54.4) | |
| Higher | 291 (9.4) | 276 (8.7) | 272 (8.6) | |
| Unknown | 80 (2.6) | 67 (2.1) | 74 (2.3) | |
| Comorbidity | ||||
| Hypertension, n (%) | 0.002 | |||
| No | 1557 (50.2) | 1695 (53.3) | 1755 (55.3) | |
| Yes | 1481 (47.8) | 1423 (44.7) | 1357 (42.8) | |
| Unknown | 61 (2.0) | 63 (2.0) | 61 (1.9) | |
| Low high‐density lipoprotein, n (%) | <0.001 | |||
| No | 2138 (69.0) | 2263 (71.1) | 2374 (74.8) | |
| Yes | 954 (30.8) | 908 (28.5) | 790 (24.9) | |
| Unknown | 7 (0.2) | 10 (0.3) | 9 (0.3) | |
| Hypertriglyceridaemia, n (%) | 0.005 | |||
| No | 2059 (66.4) | 2148 (67.5) | 2244 (70.7) | |
| Yes | 1033 (33.3) | 1023 (32.2) | 921 (29.0) | |
| Unknown | 7 (0.2) | 10 (0.3) | 8 (0.3) | |
| Diabetes, n (%) | <0.001 | |||
| No | 2486 (80.2) | 2605 (81.9) | 2723 (85.8) | |
| Yes | 524 (16.9) | 476 (15.0) | 339 (10.7) | |
| Unknown | 89 (2.9) | 100 (3.1) | 111 (3.5) |