Table 3.
Adjusted relative likelihood of seroconversion through follow-up.
Hazard ratio* (95% CI) | P-value | |
---|---|---|
Sex | ||
Male | ref | |
Female | 1.48 (1.10-2.00) | 0.01 |
Age, years | ||
2-4 | ref | |
5-11 | 1.21 (0.79-1.83) | 0.38 |
12-18 | 1.05 (0.67-1.63) | 0.84 |
Body mass index | ||
Underweight or normal weight | ref | |
Overweight | 0.77 (0.49-1.21) | 0.26 |
Chronic medical conditions | ||
None | ref | |
Yes | 1.17 (0.67-2.03) | 0.58 |
Neighborhood | ||
Plateau | ref | |
Montréal North | 1.38 (0.84-2.28) | 0.20 |
HOMA | 1.11 (0.74-1.67) | 0.62 |
West Island | 0.47 (0.27-0.81) | 0.007 |
Parental respondent's level of education | ||
No Bachelor's degree | ref | |
Bachelor's degree | 1.09 (0.73-1.62) | 0.68 |
Graduate degree | 1.18 (0.80-1.76) | 0.41 |
Parental respondent's race and ethnicity | ||
White | ref | |
Racial or ethnic minority | 1.92 (1.30-2.82) | 0.001 |
Bedroom density (persons per bedroom) | ||
<1.5 | ref | |
1.5+ | 1.34 (0.99-1.82) | 0.059 |
Dwelling type | ||
Other | ||
Single family | 0.84 (0.60-1.16) | 0.28 |
Annual household income | ||
< $100,000 CAD | ref | |
≥ $100,000 CAD | 0.59 (0.42-0.82) | 0.002 |
Household member occupation | ||
Not essential | ref | |
Essential, not health | 1.17 (0.83-1.65) | 0.38 |
Essential | 1.22 (0.83-1.81) | 0.31 |
Predominant variant | ||
Alpha | ref | |
Not a variant of concern | 0.52 (0.26, 1.03) | 0.06 |
Delta | 2.20 (1.37, 3.53) | 0.001 |
Omicron | 1.51 (0.74, 3.05) | 0.26 |
*longitudinal data from 1690 children; a minimum of 45 days of follow-up (half the risk set period) was required for inclusion in the analysis.
CI, confidence interval.