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. 2022 Apr 6;12(4):e055381. doi: 10.1136/bmjopen-2021-055381

Table 4.

Factors associated with seropositivity

Variables B SE Adjusted OR (95% CI)* P value
Location Urban 0.256 0.113 1.29 (1.035 to 1.612) 0.024
Rural†
Age (years) 0–9†
10–19 0.112 0.225 1.11 (0.7 to 1.737) 0.618
20–39 0.650 0.204 1.92 (1.285 to 2.854) 0.004
40–59 0.975 0.197 2.65 (1.803 to 3.899) 0.000
60+ 0.894 0.202 2.45 (1.646 to 3.630) 0.000
Mask use Yes 0.434 0.126 1.54 (1.205 to 1.975) 0.001
No†
Contact with COVID-19 positive case Yes 0.596 0.227 1.81 (1.163 to 2.831) 0.009
No†
Constant −3.599

*Hosmer-Lemshow goodness-of-fit test: χ2 value=8.322, p=0.403.

†Reference category.