Table 2 Baseline characteristics according to metabolic syndrome and depressive symptoms (n鈥�=鈥�3468)
Characteristics | Total Sample (n鈥�=鈥�3468) | Combination types of MetS and DS | P-value b | |||
|---|---|---|---|---|---|---|
狈辞惭别迟厂鈥�+鈥塏辞顿厂 (n鈥�=鈥�1077) | 狈辞惭别迟厂鈥�+鈥塂厂 (n鈥�=鈥�420) | 惭别迟厂鈥�+鈥塏辞顿厂 (n鈥�=鈥�1479) | 惭别迟厂鈥�+鈥塂厂 (n鈥�=鈥�492) | |||
MetS | 1971 (56.8) | 0 (0.0) | 0 (0.0) | 1479 (100.0) | 492 (100.0) | &濒迟;鈥�0.001 |
DS | 912 (26.3) | 0 (0.0) | 420 (100.0) | 0 (0.0) | 492 (100.0) | &濒迟;鈥�0.001 |
Incident LBP | 1708 (49.3) | 451 (41.9) | 278 (66.2) | 657 (44.4) | 322 (64.5) | &濒迟;鈥�0.001 |
Average follow-up duration, month | 87.2 (32.1) | 92.1 (29.3) | 74.4 (35.3) | 92.0 (29.0) | 73.1 (36.6) | &濒迟;鈥�0.001 |
Age, median (IQR), years | 58.0 (8.4) | 57.0 (11.0) | 57.0 (14.0) | 58.0 (13.0) | 59.0 (11.0) | &濒迟;鈥�0.001 |
Male | 1749 (50.4) | 688 (63.9) | 195 (46.4) | 689 (46.6) | 177 (36.0) | &濒迟;鈥�0.001 |
Rural residence | 2249 (64.9) | 751 (69.7) | 315 (75.0) | 845 (57.1) | 338 (68.7) | &濒迟;鈥�0.001 |
Education level | 听 | 听 | 听 | 听 | 听 | &濒迟;鈥�0.001 |
No formal education | 1422 (41.0) | 397 (36.9) | 198 (47.1) | 551 (37.3) | 276 (56.1) | 听 |
Primary school | 811 (23.4) | 257 (23.9) | 104 (24.8) | 343 (23.2) | 107 (21.8) | 听 |
Middle school | 812 (23.4) | 268 (24.9) | 87 (20.7) | 377 (25.5) | 80 (16.3) | 听 |
High school or above | 423 (12.2) | 155 (14.4) | 31(7.4) | 208 (14.1) | 29 (5.9) | 听 |
Married/Cohabitated | 3175 (91.6) | 1008 (93.6) | 372 (88.6) | 1381 (93.4) | 414 (84.2) | &濒迟;鈥�0.001 |
Smoking | 听 | 听 | 听 | 听 | 听 | &濒迟;鈥�0.001 |
Nonsmokers | 2058 (59.3) | 537 (49.9) | 245 (58.3) | 939 (63.5) | 337 (68.5) | 听 |
Light to moderate | 747 (21.5) | 264 (24.5) | 105 (25.0) | 292 (19.7) | 86 (17.5) | 听 |
Heavy | 663 (19.1) | 276 (25.6) | 70 (16.7) | 248 (16.8) | 69 (14.0) | 听 |
Alcohol consumption | 听 | 听 | 听 | 听 | 听 | &濒迟;鈥�0.001 |
Nondrinkers | 2230 (64.3) | 608 (56.5) | 281 (66.9) | 978 (66.1) | 363 (73.8) | 听 |
Light to moderate | 1061 (30.6) | 393 (36.5) | 120 (28.6) | 436 (29.5) | 112 (22.8) | 听 |
Heavy | 177 (5.1) | 76 (7.1) | 19 (4.5) | 65 (4.4) | 17 (3.5) | 听 |
Social activity | 听 | 听 | 听 | 听 | 听 | 0.008 |
None | 1647 (47.5) | 512 (47.5) | 220 (52.4) | 666 (45.0) | 249 (50.6) | 听 |
Some | 1173 (33.8) | 384 (35.7) | 124 (29.5) | 500 (33.8) | 165 (33.5) | 听 |
Active | 648 (18.7) | 181 (16.8) | 76 (18.1) | 313 (21.2) | 78 (15.9) | 听 |
Functional disability a | 听 | 听 | 听 | 听 | 听 | &濒迟;鈥�0.001 |
None | 2841 (83.0) | 956 (89.6) | 311 (75.1) | 1242 (85.2) | 332 (68.3) | 听 |
Mild | 467 (13.6) | 102 (9.6) | 76 (18.4) | 184 (12.6) | 105 (21.6) | 听 |
Severe | 117 (3.4) | 9 (0.8) | 27 (6.5) | 32 (2.2) | 49 (10.1) | 听 |
Number of chronic diseases | 听 | 听 | 听 | 听 | 听 | &濒迟;鈥�0.001 |
0 | 1381 (39.8) | 578 (53.7) | 139 (33.1) | 539 (36.4) | 125 (25.4) | 听 |
1鈥�2 | 1674 (48.3) | 441 (41.0) | 233 (55.5) | 748 (50.6) | 252 (51.2) | 听 |
鈮モ赌�3 | 413 (11.9) | 58 (5.4) | 48 (11.4) | 192 (13.0) | 115 (23.4) | 听 |
Body mass index, mean (SD) a | 23.7 (3.7) | 21.9 (2.7) | 21.6 (2.8) | 25.2 (3.6) | 24.6 (3.9) | &濒迟;鈥�0.001 |