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. 2020 Apr 24;6(2):e19218. doi: 10.2196/19218

Table 3.

Multilevel mixed effects linear regression models predicting daily COVID-19 mortality in 25 European countries (fixed part).

Variables Model 1 Model 2 Model 3

b 95% CI P value b 95% CI P value b 95% CI P value
Constant 6.81 4.05-9.56 <.001 5.75 3.15-8.34 <.001 5.29 2.67-7.90 <.001
Within-country effects 

Time 0.16 0.11-0.22 <.001 0.16 0.10-0.22 <.001 0.16 0.10-0.22 <.001
Between-country effects

Perceived sociability 7.04 0.25-13.83 .04 N/Aa N/A N/A N/A N/A N/A

National restrictions after first death N/A N/A N/A 2.55 1.08-4.02 .001 N/A N/A N/A

Institutional trust N/A N/A N/A N/A N/A N/A –0.42 –0.65 to –0.19 <.001

Population 0.02 –0.03 to 0.08 .42 0.02 –0.03 to 0.07 .39 –0.02 –0.08 to 0.05 .60

Population density 0.00 0.00-0.01 .04 0.00 0.00-0.01 .20 0.00 0.00-0.01 .048

Old-age dependency ratio –0.04 –0.29 to 0.20 .73 0.03 –0.20 to 0.26 .80 –0.04 –0.26 to 0.18 .73

Country household size average 0.96 –1.00 to 2.92 .34 0.98 –0.94 to 2.91 .32 –0.55 –2.45 to 1.35 .57

Life expectancy at birth 0.27 –0.01 to 0.54 .06 0.37 0.14-0.59 .002 0.29 0.05-0.52 .02

Health care expenditure per inhabitant –0.60 –1.28 to 0.07 .08 –0.25 –0.59 to 0.08 .14 0.46 0.03-0.88 .03

High tourist arrival 0.65 –0.62 to 1.93 .32 1.11 –0.10 to 2.33 .07 2.12 0.40-3.83 .02

The length of follow-up period 0.13 0.06-0.20 .001 0.12 0.05-0.19 .001 0.19 0.12-0.26 <.001

aN/A: not applicable.