Table 2 Variables, excluding age and gender, significantly associated with relatively increased incidence of reported exposures or reported weeks with symptoms of respiratory tract (RTI) or gastrointestinal infections (GTI) in univariate analysis
Variable | Incidence rate ratio, confidence interval (CI) of endpoint, and significance | |||
|---|---|---|---|---|
Weeks with reported exposure to | Weeks with reported symptoms of | |||
RTI | GTI | RTI | GTI | |
Young children in the household | 1.174 CI 1.031, 1.338 p = 0.02 | 1.228 CI 1.036, 1.457 p = 0.02 | 1.093 CI 0.951, 1.257 p = 0.21 | 1.023 CI 0.812, 1.290 p = 0.85 |
Children not yet in school | 1.244 CI 1.029, 1.505 p = 0.02 | 1.335 CI 1.048, 1.702 p = 0.02 | 1.288 CI 1.054, 1.575 p = 0.01 | 1.323 CI 0.958, 1.323 p = 0.09 |
Children in outside-home day care | 1.239 CI 1.023, 1.501 p = 0.03 | 1.409 CI 1.099, 1.806 p = 0.01 | 1.384 CI 1.132, 1.692 p = 0.00 | 1.383 CI 0.997, 1.918 p = 0.05 |
Living with at-job-exposed adult | 0.909 CI 0.699, 1.181 p = 0.48 | 1.328 CI 0.947, 1.861 p = 0.10 | 0.867 CI 658, 1.143 p = 0.31 | 0.948 CI 603, 1.490 p = 0.82 |
Regular use of public transport | 1.071 CI 930, 1,235 p = 0.34 | 1.061 CI 0.869, 1.296 p = 0.56 | 1.163 CI 1.002, 1.349 p = 0.051.163 | 1.236 CI 0.976, 1.565 p = 0.08 |
Suffering from chronic respiratory or cardiovascular disease | 1.080 CI 880, 1,327 p = 0.46 | 1.044 CI 0.799, 1.364 p = 0.75 | 1.285 CI 1.039, 1.590 p = 0.02 | 1.271 CI 0.902, 1.791 p = 0. 17 |
Recipient of seasonal influenza vaccine in autumn 2008 | 1.071 CI 0.894, 1.282 p = 0.46 | 1.052 CI 0.831, 1.332 p = 0.67 | 1.312 CI 1.088, 1.582 p = 0.00 | 1.108 CI 0.814, 1.508 p = 0.52 |
Passive smoking | 1.141 CI 1.000, 1.302 p = 0.05 | 1.222 CI 1.029, 1.453 p = 0.02 | 1.009 CI 0.876, 1.162 p = 0.90 | 1.144 CI 0.910, 1.437 p = 0.25 |