Univariate associations with asthma remission by the age of 46 years
| Characteristic or exposure (n) | Remitted, n (%) | OR (95% CI) | p Value |
| Sex | |||
| Female (878) | 528 (44.9) | 0.66 (0.54 to 0.80) | <0.001 |
| Male (933) | 649 (55.1) | 1.00 | – |
| Maternal asthma | |||
| Yes (301) | 179 (59.5) | 0.74 (0.57 to 0.96) | 0.021 |
| No (1405) | 934 (66.5) | 1.00 | – |
| Paternal asthma | |||
| Yes (288) | 185 (64.2) | 0.94 (0.72 to 1.22) | 0.633 |
| No (1388) | 912 (65.7) | 1.00 | – |
| Maternal smoking | |||
| Yes (640) | 408 (63.8) | 0.90 (0.73 to 1.10) | 0.303 |
| No (1071) | 709 (66.2) | 1.00 | – |
| Paternal smoking | |||
| Yes (988) | 640 (64.8) | 0.93 (0.75 to 1.14) | 0.460 |
| No (687) | 457 (66.5) | 1.00 | – |
| Allergic rhinitis | |||
| Childhood onset (400) | 256 (64.0) | 0.45 (0.33 to 0.61) | <0.001 |
| Later onset (853) | 497 (58.3) | 0.35 (0.27 to 0.46) | <0.001 |
| None (495) | 395 (79.8) | 1.00 | – |
| Eczema | |||
| Childhood onset (381) | 233 (61.2) | 0.65 (0.50 to 0.83) | 0.001 |
| Later onset (582) | 343 (58.9) | 0.59 (0.47 to 0.74) | <0.001 |
| None (848) | 601 (70.9) | 1.00 | – |
| Food allergy | |||
| Yes (187) | 116 (62.0) | 0.84 (0.62 to 1.15) | 0.289 |
| No (1582) | 1043 (66.0) | 1.00 | – |
| Urticaria | |||
| Yes (427) | 280 (65.6) | 1.01 (0.80 to 1.27) | 0.949 |
| No (1321) | 864 (65.4) | 1.00 | – |
| Childhood chronic bronchitis | |||
| Yes (328) | 206 (62.8) | 0.68 (0.52 to 0.89) | 0.005 |
| No (873) | 622 (71.3) | 1.00 | – |
| Severe childhood asthma | |||
| Yes (376) | 254 (67.6) | 1.15 (0.91 to 1.47) | 0.249 |
| No (1434) | 923 (64.4) | 1.00 | – |
| Exclusive breast feeding | |||
| Yes (703) | 462 (65.7) | 1.02 (0.84 to 1.25) | 0.812 |
| No (1068) | 696 (65.2) | 1.00 | – |
| At least one older sibling | |||
| Yes (1180) | 779 (66.0) | 1.14 (0.93 to 1.39) | 0.211 |
| No (631) | 398 (63.1) | 1.00 | – |
| Childhood pneumonia | |||
| Yes (376) | 265 (70.5) | 1.34 (1.04 to 1.71) | 0.021 |
| No (1387) | 889 (64.1) | 1.00 | – |
| Childhood immunisation (DPT) | |||
| Yes (1512) | 971 (64.2) | 0.85 (0.58 to 1.24) | 0.394 |
| No (131) | 89 (67.9) | 1.00 | |
| Impaired lung function (at age 7 years) | |||
| Yes (72) | 38 (52.8) | 0.59 (0.37 to 0.94) | 0.028 |
| No (1739) | 1139 (65.5) | 1.00 | – |
| Body mass index (at age 7 years) | |||
| Obese (9) | 5 (55.6) | 0.66 (0.18 to 2.48) | 0.540 |
| Overweight (100) | 66 (66.0) | 1.03 (0.67 to 1.58) | 0.897 |
| Normal (1585) | 1036 (65.4) | 1.00 | – |
| Life stage at asthma onset | |||
| Childhood (1192) | 880 (73.8) | 3.28 (2.62 to 4.10) | <0.001 |
| Adolescence (148) | 75 (50.7) | 1.19 (0.82 to 1.73) | 0.351 |
| Adult (456) | 211 (46.3) | 1.00 | – |
| Adult smoking | |||
| Ever smoking (1096) | 716 (65.3) | 1.04 (0.85 to 1.26) | 0.718 |
| Never smoking (707) | 456 (64.5) | 1.00 | – |
| Passive adult smoking | |||
| Yes (501) | 316 (63.1) | 0.89 (0.72 to 1.11) | 0.306 |
| No (1278) | 839 (65.7) | 1.00 | – |
| Childhood socio-economic status | |||
| Level 1 (369) | 244 (66.1) | 1.00 | – |
| Level 2 (108) | 69 (63.9) | 0.91 (0.58 to 1.42) | 0.667 |
| Level 3 (520) | 337 (64.8) | 0.94 (0.71 to 1.25) | 0.684 |
| Level 4 (473) | 319 (67.4) | 1.06 (0.79 to 1.42) | 0.687 |
| Level 5 (229) | 136 (59.4) | 0.75 (0.53 to 1.05) | 0.097 |
| Adult socio-economic status | |||
| Level 1 (515) | 338 (65.6) | 1.00 | – |
| Level 2 (202) | 131 (64.9) | 0.97 (0.69 to 1.36) | 0.988 |
| Level 3 (325) | 230 (70.8) | 1.27 (0.94 to 1.71) | 0.338 |
| Level 4 (343) | 216 (63.0) | 0.89 (0.67 to 1.18) | 0.425 |
| Level 5 (403) | 251 (62.3) | 0.86 (0.66 to 1.13) | 0.294 |
Results with a p value <0.15 are shown in bold.
DPT, diphtheria, pertussis and tetanus.