Table 2 Sequential multilevel Poisson regression models for individuals with a SARS-CoV-2 infection in Ontario

Intercept

2.97

2.39

2.86

Individual Level

RR (95% CI)

RR (95% CI)

RR (95% CI)

Age, yr

 20–34

2.24 (2.18–2.31)

2.24 (2.18–2.31)

 35–49

1.84 (1.79–1.89)

1.84 (1.79–1.89)

 50–64

1.65 (1.62–1.68)

1.65 (1.62–1.68)

 65–114

1.00

1.00

Sex (ref. male)

1.00 (0.99–1.01)

1.00 (0.99–1.01)

Diabetes

1.29 (1.27–1.32)

1.29 (1.27–1.32)

Hypertension

1.09 (1.08–1.10)

1.09 (1.08–1.10)

COPD

0.94 (0.92–0.96)

0.94 (0.92–0.96)

CHF

1.20 (1.16–1.24)

1.20 (1.16–1.24)

Asthma

1.03 (1.01–1.05)

1.03 (1.01–1.05)

FSA census-based variables

RR (95% CI)

RR (95% CI)

RR (95% CI)

Household size

1.83 (1.71–1.97)

Proportion of people driving to work

0.68 (0.65–0.71)

Proportion of people in sales / service Jobs

1.13 (1.06–1.21)

Median after-tax income in 2015

0.96 (0.89–1.02)

Level 2 (FSA) Variance of Random Effect

0.61

0.58

0.29

Proportional change in variance (PCV) by the new model (%)

Reference

4.92

52.46

Median Rate Ratio

2.1

2.07

1.67

Median Rate Ratio attenuation (%)

Reference

2.73

39.09

Model Fit Statistics

Deviance (-2 Log Likelihood)

178298.7

159760.8

159427.7

Dispersion (Pearson Chi-Square / DF)

1.27

1.04

1.04

AIC

178302.7

159782.8

159457.7

BIC

178311.1

159829.4

159521.3