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Table 2 Logistic regression model: association of the mask usage with selected variables by time point (odds ratio (OR) estimates and 95% confidence intervals (CIs) of OR estimates); Poland, 2020; n = 750–818

From: Use of masks in public places in Poland during SARS-Cov-2 epidemic: a covert observational study

Variable

Time point 1

Time point 2

Time point 3

ORa

CI

OR

CI

OR

CI

Gender: female

1.77

1.24–2.53

1.47

1.05–2.00

1.53

1.07–2.12

Area: closed space

2.60

1.54–4.58

2.59

1.69–4.06

2.32

1.54–3.59

Activity: sport

0.64

0.43–0.97

0.54

0.36–0.76

0.54

0.36–0.78

  1. aOdds ratio (OR) = ratio between the two categories tested in each variable, controlling for other variable