Table 4.
Logistic Regression Analysis of Factors Associated with Current Allergic Rhinoconjunctivitis Symptoms Among Schoolchildren aged 13–14 years (N = 4086).
| Associated factor |
Number (%) |
Bivariate Model |
Multivariable Model |
||
|---|---|---|---|---|---|
| Crude OR (95% CI) | P value | Adjusted OR (95% CI) | P value | ||
| Sex | |||||
| Male | 244 (12.4%) | Reference | Reference | ||
| Female | 314 (15.6%) | 1.31 (1.09–1.57) | 0.003a | 1.02 (0.77–1.36) | 0.872 |
| Pulses (peas, beans, lentils) | |||||
| Never or only occasionally | 233 (16.4%) | Reference | Reference | ||
| Once or twice per week | 213 (12.6%) | 0.74 (0.61–0.91) | 0.003a | 0.70 (0.52–0.95) | 0.020a |
| Most or all days | 73 (14.6%) | 0.87 (0.66–1.16) | 0.349 | 1.07 (0.71–1.62) | 0.731 |
| Eggs | |||||
| Never or only occasionally | 144 (17.2%) | Reference | Reference | ||
| Once or twice per week | 233 (14.3%) | 0.80 (0.64–1.01) | 0.060 | 0.67 (0.48–0.92) | 0.015a |
| Most or all days | 140 (12.2%) | 0.67 (0.52–0.86) | 0.002a | 0.53 (0.36–0.77) | 0.001a |
| Sugar | |||||
| Never or only occasionally | 86 (12.4%) | Reference | Reference | ||
| Once or twice per week | 200 (12.6%) | 1.02 (0.78–1.34) | 0.877 | 1.04 (0.70–1.55) | 0.847 |
| Most or all days | 243 (17.1%) | 1.46 (1.12–1.91) | 0.005a | 1.43 (0.94–2.18) | 0.093 |
| Burgers | |||||
| Never or only occasionally | 146 (12.8%) | Reference | Reference | ||
| Once or twice per week | 268 (14.9%) | 1.20 (0.97–1.49) | 0.101 | 0.99 (0.69–1.43) | 0.957 |
| Most or all days | 124 (16.0%) | 1.30 (1.01–1.69) | 0.045a | 0.76 (0.45–1.27) | 0.292 |
| Fast food | |||||
| Never or only occasionally | 143 (12.7%) | Reference | Reference | ||
| Once or twice per week | 257 (14.3%) | 1.14 (0.92–1.42) | 0.245 | 0.96 (0.67–1.39) | 0.835 |
| Most or all days | 123 (16.6%) | 1.37 (1.05–1.77) | 0.019a | 1.20 (0.72–2.02) | 0.483 |
| Weekly vigorous physical activity | |||||
| Never or occasionally | 356 (12.6%) | Reference | Reference | ||
| Once or twice per week | 141 (20.9%) | 1.83 (1.47–2.27) | 0.000a | 1.70 (1.23–2.33) | 0.001a |
| Three or more times per week | 52 (20.4%) | 1.78 (1.29–2.46) | 0.000a | 1.54 (0.92–2.57) | 0.098 |
| Daily television time | |||||
| Less than 1 h | 157 (12.8%) | Reference | Reference | ||
| 1 h but less than 3 h | 140 (12.7%) | 1.00 (0.78–1.27) | 0.965 | 0.97 (0.68–1.37) | 0.847 |
| 3 h or more | 264 (17.0%) | 1.40 (1.13–1.73) | 0.002a | 1.07 (0.78–1.48) | 0.680 |
| Daily computer time | |||||
| Less than 1 h | 63 (10.5%) | Reference | Reference | ||
| 1 h but less than 3 h | 50 (9.1%) | 0.85 (0.57–1.25) | 0.406 | 0.88 (0.54–1.44) | 0.620 |
| 3 h or more | 284 (14.6%) | 1.46 (1.09–1.95) | 0.011a | 1.21 (0.82–1.79) | 0.329 |
| Paracetamol use in the last 12 months | |||||
| Never | 69 (8.6%) | Reference | Reference | ||
| At least once a year | 185 (11.7%) | 1.41 (1.06–1.89) | 0.020a | 1.02 (0.69–1.53) | 0.906 |
| At least once per month | 297 (20.5%) | 2.75 (2.08–3.63) | 0.000a | 1.83 (1.25–2.68) | 0.002a |
| Had a cat at home last 12 months | |||||
| No | 416 (13.1%) | Reference | Reference | ||
| Yes | 142 (18.3%) | 1.49 (1.21–1.83) | 0.000a | 1.44 (1.05–1.97) | 0.023a |
| Trucks passing near home | |||||
| Never | 61 (9.4%) | Reference | Reference | ||
| Seldom (not often) | 321 (13.7%) | 1.53 (1.15–2.04) | 0.004a | 1.20 (0.79–1.83) | 0.400 |
| Frequently or almost the whole day | 176 (18.6%) | 2.21 (1.62–3.01) | 0.000a | 1.54 (0.97–2.44) | 0.064 |
Abbreviations: OR, odds ratio; CI, confidence interval.
Note: This table only presents results for variables that achieved statistical significance based on the bivariate logistic model and were included in the multivariable regression model. Variables not meeting this criterion are not shown.
a
Significant