Research Article
Ear Infection and Its Associated Risk Factors in First Nations and Rural School-Aged Canadian Children
Table 2
Bivariable logistic regression analysis of the association of physician diagnosed ear infection on personal and environmental factors (
).
| | Ever diagnosed with ear infection | Unadjusted odds ratio | | Yes/total | (%) | (95% CI) |
| Environmental factors | Exposure to passive smoking | | | | Yes | 226/414 | 54.6 | 0.94 (0.76, 1.17) | No | 1131/2019 | 56.0 | 1.00 | During past 12 months, water or dampness | | | | Yes | 576/1015 | 56.7 | 1.07 (0.91, 1.26) | No | 781/1418 | 55.1 | 1.00 | House damage caused by dampness | | | | Yes | 403/720 | 56.0 | 1.01 (0.85, 1.20) | No | 954/1713 | 55.7 | 1.00 | Signs of mold or mildew in home | | | | Yes | 300/542 | 55.4 | 0.98 (0.81, 1.18) | No | 1057/1891 | 55.9 | 1.00 | Number of people in home | | | | ≤4 people | 718/1286 | 55.8 | 1.00 (0.86, 1.18) | >4 people | 639/1147 | 55.7 | 1.00 |
| Personal factors | Age, in years | | | | 6–11 | 766/1319 | 58.1 | 1.23 (1.04, 1.44) | 12–17 | 591/1114 | 53.1 | 1.00 | Sex | | | | Male | 669/1190 | 56.2 | 1.04 (0.88, 1.22) | Female | 688/1243 | 55.3 | 1.00 | Obese | | | | Yes | 103/168 | 61.3 | 1.28 (0.93, 1.76) | No | 1254/2265 | 55.4 | 1.00 | Ethnicity | | | | First Nations/Métis | 153/351 | 43.6 | 0.56 (0.45, 0.71) | Caucasian | 1204/2082 | 57.8 | 1.00 | Mother’s education | | | | <High school | 90/184 | 48.9 | 0.74 (0.55, 1.00) | ≥High school | 1267/2249 | 56.3 | 1.00 | Mother smoked during pregnancy | | | | Yes | 330/595 | 55.5 | 0.98 (0.82, 1.18) | No | 1027/1838 | 55.9 | 1.00 | Breastfed longer than three months | | | | Yes | 551/1037 | 53.1 | 0.83 (0.71, 0.98) | No | 806/1396 | 57.7 | 1.00 | First born | | | | Yes | 540/902 | 59.9 | 1.30 (1.10, 1.54) | No | 817/1531 | 53.4 | 1.00 | Tonsillitis | | | | Yes | 550/691 | 79.6 | 4.52 (3.67, 5.56) | No | 807/1742 | 46.3 | 1.00 | Asthma | | | | Yes | 242/375 | 64.5 | 1.53 (1.27, 1.83) | No | 1115/2058 | 54.2 | 1.00 | Any respiratory related allergy | | | | Yes | 429/679 | 63.2 | 1.53 (1.27, 1.83) | No | 928/1754 | 52.9 | 1.00 | Birth weight# | | | | Underweight (<2500 g) | 89/143 | 62.2 | 1.25 (0.88, 1.78) | Overweight (>4000 g) | 203/353 | 57.5 | 1.03 (0.82, 1.29) | Normal (≥2500 g to 4000 g) | 1031/1814 | 56.8 | 1.00 |
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Odds rations that are significantly different from 1.00 () are in bold face. #Missing values are present.
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