Variable | Overall N = 15581 | Atopic dermatitis | Allergic rhinitis | Ever asthma | ||||||
---|---|---|---|---|---|---|---|---|---|---|
No N = 11491 | Yes N = 3931 | p-value2 | No N = 9871 | Yes N = 5641 | p-value2 | No N = 13201 | Yes N = 2271 | p-value2 | ||
Age at collection (in years) | 25.0 ± 7.6 | 25.0 ± 7.9 | 24.9 ± 6.6 | 0.769 | 25.5 ± 8.4 | 24.0 ± 5.7 |  < 0.001 | 24.9 ± 7.6 | 25.1 ± 7.5 | 0.697 |
Gender | Â | Â | Â | 0.023 | Â | Â | 0.004 | Â | Â | 0.006 |
    Female | 955 (61.4%) | 726 (63.2%) | 221 (56.5%) |  | 632 (64.1%) | 318 (56.5%) |  | 827 (62.7%) | 120 (52.9%) |  |
    Male | 601 (38.6%) | 423 (36.8%) | 170 (43.5%) |  | 354 (35.9%) | 245 (43.5%) |  | 491 (37.3%) | 107 (47.1%) |  |
    Unknown | 2 | 0 | 2 |  | 1 | 1 |  | 2 | 0 |  |
Housing type | Â | Â | Â | 0.010 | Â | Â | 0.009 | Â | Â | 0.333 |
    Flats | 980 (65.4%) | 709 (64.4%) | 259 (67.8%) |  | 606 (64.3%) | 369 (67.2%) |  | 823 (65.1%) | 152 (68.5%) |  |
    Condo/private apartment | 408 (27.2%) | 321 (29.2%) | 86 (22.5%) |  | 278 (29.5%) | 129 (23.5%) |  | 346 (27.4%) | 59 (26.6%) |  |
    Landed property | 110 (7.3%) | 71 (6.4%) | 37 (9.7%) |  | 59 (6.3%) | 51 (9.3%) |  | 96 (7.6%) | 11 (5.0%) |  |
    Unknown | 60 | 48 | 11 |  | 44 | 15 |  | 55 | 5 |  |
Income category | Â | Â | Â | 0.010 | Â | Â | 0.005 | Â | Â | 0.051 |
    < SGD 2000 | 159 (10.4%) | 129 (11.4%) | 29 (7.5%) |  | 118 (12.2%) | 41 (7.4%) |  | 136 (10.5%) | 21 (9.5%) |  |
    SGD 2000—3999 | 418 (27.4%) | 315 (28.0%) | 96 (24.9%) |  | 276 (28.6%) | 141 (25.4%) |  | 365 (28.1%) | 49 (22.3%) |  |
    SGD 4000—5999 | 338 (22.1%) | 256 (22.7%) | 80 (20.8%) |  | 206 (21.3%) | 131 (23.6%) |  | 292 (22.5%) | 43 (19.5%) |  |
    ≥ SGD 6000 | 612 (40.1%) | 427 (37.9%) | 180 (46.8%) |  | 366 (37.9%) | 242 (43.6%) |  | 504 (38.9%) | 107 (48.6%) |  |
    Unknown | 31 | 22 | 8 |  | 21 | 9 |  | 23 | 7 |  |
Total sleep time (in hours) | 6.8 ± 1.1 | 6.8 ± 1.0 | 6.8 ± 1.1 | 0.480 | 6.9 ± 1.0 | 6.7 ± 1.1 | 0.053 | 6.8 ± 1.1 | 6.7 ± 1.0 | 0.015 |
Sleep quality | Â | Â | Â | 0.170 | Â | Â | 0.933 | Â | Â | 0.324 |
    Very bad to moderate | 453 (44.6%) | 328 (43.2%) | 118 (48.2%) |  | 303 (44.7%) | 147 (44.4%) |  | 390 (44.1%) | 61 (48.8%) |  |
    Good to very good | 562 (55.4%) | 432 (56.8%) | 127 (51.8%) |  | 375 (55.3%) | 184 (55.6%) |  | 494 (55.9%) | 64 (51.2%) |  |
    Unknown | 543 | 389 | 148 |  | 309 | 233 |  | 436 | 102 |  |