Table 2.
Social and lifestyle factors by disease activity
| Factors | Remission (n = 1346) |
Active disease (n = 583) |
Post proctocolectomy (n = 42) |
|---|---|---|---|
| Socioeconomic status | |||
| Employment, n (%) | |||
| Student | 91 (6.8) | 44 (7.5) | 2 (4.8) |
| Unemployed | 275 (20.4) | 130 (22.3) | 12 (28.6) |
| Employed | 971 (72.1) | 407 (69.8) | 28 (66.7) |
| Missing | 9 (0.7) | 2 (0.3) | 0 |
| Annual income (JPY), n (%) | |||
| < 3 million | 160 (11.9) | 95 (16.3) | 8 (19.0) |
| ≥ 3 and < 5 million | 327 (24.3) | 167 (28.6) | 14 (33.3) |
| ≥ 5 and < 7 million | 278 (20.7) | 111 (19.0) | 6 (14.3) |
| ≥ 7 and < 10 million | 260 (19.3) | 102 (17.5) | 8 (19.0) |
| ≥ 10 and < 12 million | 131 (9.7) | 36 (6.2) | 4 (9.5) |
| ≥ 12 million | 145 (10.8) | 62 (10.6) | 2 (4.8) |
| Missing | 45 (3.3) | 10 (1.7) | 0 |
| Education, n (%) | |||
| Junior high school | 22 (1.6) | 16 (2.7) | 0 |
| High school | 217 (16.1) | 107 (18.4) | 11 (26.2) |
| Vocational school | 171 (12.7) | 85 (14.6) | 6 (14.3) |
| Community college | 117 (8.7) | 39 (6.7) | 2 (4.8) |
| University | 535 (39.7) | 219 (37.6) | 18 (42.9) |
| Graduate school | 82 (6.1) | 31 (5.3) | 2 (4.8) |
| Missing | 202 (15.0) | 86 (14.8) | 3 (7.1) |
| Social factors | |||
| Social support (mMOS-SS), median (IQR)a | 75.00 (31.25) | 71.88 (37.50) | 68.75 (43.75) |
| Stress (JPSS), median (IQR)b | 23 (9) | 26 (11) | 25 (10) |
| Living alone, n (%) | 211 (15.7) | 95 (16.3) | 12 (28.6) |
| Physical activity (IPAQ-short) | |||
| Total MET (minutes/week), median (IQR)c | 1386 (2338) | 1188 (2346) | 1164 (1683) |
| Total MET (minutes/week), n (%) | |||
| Low | 122 (9.1) | 55 (9.4) | 7 (16.7) |
| Moderate | 976 (72.5) | 428 (73.4) | 29 (69.0) |
| High | 217 (16.1) | 85 (14.6) | 5 (11.9) |
| Missing | 31 (2.3) | 15 (2.6) | 1 (2.4) |
| Smoking history | |||
| Brinkman index, median (IQR)d | 205 (300) | 200 (350) | 300 (260) |
| Smoking status, n (%) | |||
| Never | 825 (61.3) | 358 (61.4) | 19 (45.2) |
| Current | 115 (8.5) | 46 (7.9) | 3 (7.1) |
| Former | 405 (30.1) | 179 (30.7) | 20 (47.6) |
| Missing | 1 (0.1) | 0 | 0 |
| Sleep, median (IQR) | |||
| Sleep duration (h)e | 6.5 (1.0) | 6.0 (1.0) | 6.5 (1.0) |
| Work, median (IQR) | |||
| Work hour (h/week)f | 40 (22) | 40 (20) | 40 (27) |
IPAQ International Physical Activity Questionnaire, IQR interquartile range, JPSS Japanese version of the Perceived Stress Scale, MET metabolic equivalent task, mMOS-SS modified Medical Outcomes Study Social Support Survey
aRemission (n = 1342), Active disease (n = 581), Post proctocolectomy (n = 41)
bRemission (n = 1328), Active disease (n = 578), Post proctocolectomy (n = 41)
cRemission (n = 1315), Active disease (n = 568), Post proctocolectomy (n = 41)
dRemission (n = 512), Active disease (n = 218), Post proctocolectomy (n = 23)
eRemission (n = 1343), Active disease (n = 583), Post proctocolectomy (n = 42)
fRemission (n = 964), Active disease (n = 405), Post proctocolectomy (n = 28)