TABLE 2.
Prevalence and ORs from the univariate and multivariate logistic regression for ever asthma by potential risk factors in Aboriginal children
| Factors | Prevalence, % |
OR (95% CI)
|
|
|---|---|---|---|
| Univariate | Multivariate | ||
| Age, years | |||
| 6–9 | 14.5 | 1.00 | |
| 10–14 | 14.1 | 0.97 (0.87–1.01) | |
| Sex | |||
| Female | 11.4 | 1.00 | 1.00 |
| Male | 17.1 | 1.61 (1.43–1.80)‡ | 1.52 (1.33–1.74)‡ |
| Aboriginal ancestry | |||
| North American Indian | 14.2 | 1.00 | 1.00 |
| Métis | 15.1 | 1.07 (0.94–1.22) | 1.13 (0.97–1.32) |
| Inuit | 5.8 | 0.37 (0.28–0.50)‡ | 0.61 (0.43–0.87)† |
| Multiple ancestries | 15.6 | 1.11 (0.96–1.29) | 1.07 (0.91–1.26) |
| Residence | |||
| Urban | 15.4 | 1.00 | 1.00 |
| Nonurban | 11.7 | 0.73 (0.65–0.82)‡ | 0.82† (0.72–0.94) |
| Region of residence (Canada) | |||
| Prairies | 14.7 | 1.00 | NA |
| Atlantic | 16.2 | 1.12 (0.93–1.35) | |
| Quebec | 16.2 | 1.12 (0.95–1.34) | |
| Ontario | 14.6 | 1.00 (0.85–1.17) | |
| British Columbia | 13.2 | 0.89 (0.75–1.05) | |
| Territories | 5.9 | 0.36 (0.28–0.48)‡ | |
| Low birth weight (<2500 g) | |||
| No | 14.0 | 1.00 | 1.00 |
| Yes | 19.1 | 1.45 (1.20–1.77)‡ | 1.44 (1.15–1.80)† |
| Ever breastfed | |||
| No | 14.7 | 1.00 | |
| Yes | 14.3 | 0.97 (0.86–1.10) | |
| Daycare attendance | |||
| No | 13.6 | 1.00 | 1.00 |
| Yes | 14.9 | 1.12 (0.99–1.26)§ | 1.13 (0.99–1.29)§ |
| Body mass index | |||
| Normal/underweight | 13.7 | 1.00 | 1.00 |
| Overweight | 15.4 | 1.15 (1.00–1.32)§ | 1.17 (1.00–1.38)* |
| Obese | 15.6 | 1.17 (1.00–1.37)§ | 1.24 (1.05–1.48)* |
| Allergies | |||
| No | 8.9 | 1.00 | 1.00 |
| Yes | 37.2 | 6.06 (5.35–6.85)‡ | 5.99 (5.26–6.84)‡ |
| Psychological/nervous difficulties | |||
| No | 14.0 | 1.00 | 1.00 |
| Yes | 22.1 | 1.74 (1.39–2.19)‡ | 1.27 (0.97–1.66)§ |
| Dwelling condition | |||
| No need of repairs | 13.7 | 1.00 | 1.00 |
| In need of minor repairs | 14.5 | 1.07 (0.95–1.21) | 1.08 (0.93–1.24) |
| In need of major repairs | 15.8 | 1.18 (1.01–1.39)† | 1.27 (1.06–1.54)* |
| Number of siblings | |||
| ≤1 | 14.9 | 1.00 | |
| ≥2 | 13.9 | 0.93 (0.83–1.04) | |
| Family income/year, $ | |||
| >30,000 | 13.7 | 1.00 | 1.00 |
| ≤30,000 | 16.3 | 1.23 (1.08–1.41)† | 1.16 (0.99–1.35)§ |
| Health consultation in past 12 months | |||
| No | 8.9 | 1.00 | NA |
| Yes | 16.5 | 2.03 (1.74–2.38)‡ | |
| Hospitalization in past 12 months | |||
| No | 14.1 | 1.00 | NA |
| Yes | 22.6 | 1.78 (1.35–2.34)‡ | |
| General health status | |||
| Excellent or very good | 11.6 | 1.00 | NA |
| Good, fair or poor | 27.8 | 2.92 (2.59–3.30)‡ | |
*
P<0.05;
†
P<0.01;
‡
P<0.001;
§
P<0.10. NA Not considered for multiple logistic regression