TABLE 1.
Population characteristics according to current asthma status
| All | Never asthma | Current asthma | p‐value | |
|---|---|---|---|---|
| n = 41 570 | n = 37 426 | n = 4144 | ||
| Gender, n (%) | ||||
| Male | 18 348 (44.1) | 16 577 (44.3) | 1771 (42.7) | 0.056 |
| Female | 23 222 (55.9) | 20 849 (55.7) | 2373 (57.3) | |
| Age (years), mean ± sd | 46.8 ± 13.2 | 47.1 ± 13.2 | 44.1 ± 13.2 | <0.0001 |
| Smoking status, n (%) | ||||
| Never smoker | 20 900 (50.3) | 18 924 (50.6) | 1976 (47.7) | <0.0001 |
| Ex‐smoker | 14 258 (34.3) | 12 891 (34.4) | 1367 (33.0) | |
| Current smoker | 6412 (15.4) | 5611 (15.0) | 801 (19.3) | |
| BMI (Body Mass Index ‐ kg/m2), n (%) | ||||
| <24.9 | 24 422 (58.7) | 22 196 (59.3) | 2226 (53.7) | <0.0001 |
| [25–29.9] | 12 345 (29.7) | 11 048 (29.5) | 1297 (31.3) | |
| ≥30 | 4803 (11.6) | 4182 (11.2) | 621 (15.0) | |
| Educational level, n (%) | ||||
| <high school diploma | 8142 (19.8) | 7413 (20.0) | 729 (17.8) | 0.0061 |
| high school to 1‐level university | 6113 (14.9) | 5513 (14.9) | 600 (14.7) | |
| 2‐level university to 4‐level university | 15 398 (37.4) | 13 836 (37.3) | 1562 (38.3) | |
| ≥5‐level university | 11 478 (27.9) | 10 284 (27.8) | 1194 (29.2) | |
| Asthma symptom score, n (%) | ||||
| 0 symptom | 28 060 (69.5) | 27 437 (75.4) | 623 (15.7) | <0.0001 |
| 1 symptom | 7736 (19.2) | 6322 (17.4) | 1411 (35.7) | |
| ≥2 symptoms | 4567 (11.3) | 2645 (7.2) | 1922 (48.6) | |
| Weekly use of cleaning products, n (%) | ||||
| <1 day/week | 10 760 (26.8) | 9790 (27.1) | 970 (24.0) | <0.0001 |
| ≥1 day/week | 29 464 (73.2) | 26 398 (72.9) | 3066 (76.0) | |
| Household help, n (%) | 21 000 (51.2) | 18 868 (51.1) | 2132 (52.1) | <0.0001 |
| Potential occupational exposure a , n (%) | 2699 (8.1) | 2394 (8.1) | 305 (9.0) | 0.0524 |
Note: Results presented in bold are significant.
a
To cleaning products according to a preliminary transcoding for applying the OAsJEM (Occupational asthma‐specific job‐exposure matrix 39 ) to 49 job codes in CONSTANCES.