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Table 1 Baseline characteristics according to sedentary behavior levels (tertiles)
| Variables | Total (n= 4,302) | Low (n= 1,211) | Middle (n= 1,687) | High (n= 1,404) | pvalue |
|---|---|---|---|---|---|
| Sedentary time (hrs/day) | 5 (3–8) | 2.5 (2–3) | 5 (4–6) | 10 (8–11) | |
| Age (years) | 43 (33–54) | 46 (37–56) | 44 (34–55) | 39 (29–49) | < 0.001* |
| Gender | < 0.001* | ||||
| Male | 2,084 (48.4) | 502 (41.5) | 818 (48.5) | 764 (54.4) | |
| Female | 2,218 (51.6) | 709 (58.5) | 869 (51.5) | 640 (45.6) | |
| Body mass index (kg/m2) | 25.4 ± 4.9 | 25.7 ± 4.9 | 25.6 ± 5.0 | 25.0 ± 4.7 | 0.001† |
| Weekly MVPA (1=low 2=moderate 3=high) | 1.83 ± 0.74 | 2.01 ± 0.78 | 1.85 ± 0.73 | 1.65 ± 0.69 | < 0.001† |
| Psychological distress | < 0.001* | ||||
| < 2 | 3431 (79.8) | 1002 (82.7) | 1369 (81.1) | 1060 (75.5) | |
| ≥ 2 | 871 (20.2) | 209 (17.3) | 318 (18.9) | 344 (24.5) | |
| Ethnic group | 0.001* | ||||
| Chinese | 1,336 (31.1) | 310 (25.6) | 491 (29.1) | 535 (38.1) | |
| Malay | 1,285 (29.9) | 427 (35.3) | 522 (30.9) | 336 (23.9) | |
| Indian | 1,343 (31.2) | 399 (32.9) | 541 (32.1) | 403 (28.7) | |
| Other | 338 (7.9) | 75 (6.2) | 133 (7.9) | 130 (9.3) | |
| Marital status | < 0.001* | ||||
| Never married | 879 (20.4) | 148 (12.2) | 334 (19.8) | 387 (28.3) | |
| Married | 3,091 (71.9) | 950 (78.5) | 1,298 (71.6) | 933 (66.4) | |
| Separated | 22 (0.5) | 11 (0.9) | 8 (0.5) | 3 (0.2) | |
| Divorced | 127 (3.0) | 35 (2.9) | 59 (3.5) | 33 (2.4) | |
| Widowed | 183 (4.3) | 67 (5.5) | 78 (4.6) | 38 (2.7) | |
| Household income (Singapore dollar/month) | < 0.001* | ||||
| <2000 | 1,095 (25.5) | 375 (31.0) | 495 (29.4) | 225 (16.0) | |
| 2000–3999 | 1,207 (28.1) | 389 (32.1) | 448 (26.6) | 370 (26.4) | |
| 4000–5999 | 741 (17.2) | 173 (14.3) | 284 (16.8) | 284 (20.2) | |
| 6000–9999 | 469 (10.9) | 96 (7.9) | 154 (9.1) | 219 (15.6) | |
| >10000 | 297 (6.9) | 31 (2.6) | 103 (6.1) | 163 (11.6) | |
| Refused | 16 (0.4) | 5 (0.4) | 5 (0.3) | 6 (0.4) | |
| Don’t know | 477 (11.1) | 142 (11.7) | 198 (11.7) | 137 (9.8) | |
| Chronic condition | < 0.001* | ||||
| Yes | 951 (22.1) | 301 (24.9) | 397 (23.5) | 253 (18.0) | |
| Yes (not seeing doctor) | 311 (7.2) | 92 (7.6) | 123 (7.3) | 96 (6.8) | |
| No | 3,040 (70.7) | 818 (67.5) | 1,167 (69.2) | 1,055 (75.1) | |
| Smoking | 0.530* | ||||
| No | 3,194 (74.2) | 909 (75.1) | 1,252 (74.2) | 1,033 (73.6) | |
| Quit | 356 (8.3) | 92 (7.6) | 130 (7.7) | 134 (9.5) | |
| Occasionally | 109 (2.5) | 29 (2.4) | 42 (2.5) | 38 (2.7) | |
| Daily | 643 (14.9) | 181 (14.9) | 263 (15.6) | 199 (14.2) | |
| Binge drinking | < 0.001* | ||||
| Non drinker | 2,921 (67.9) | 911 (75.2) | 1,175 (69.7) | 835 (59.5) | |
| Non binge drinker | 1,078 (25.1) | 231 (19.1) | 387 (22.9) | 460 (32.8) | |
| Binge drinker (≥5 drinks) | 303 (7.0) | 69 (5.7) | 125 (7.4) | 109 (7.8) |
