. 2020 Feb 29;21:46. doi: 10.1186/s12875-020-01115-y

Table 3.

Hierarchical Linear Regression Results

Variable	Standardized Coefficients	p-value	Level Statistics
Influenza
Level 1
Constant		< 0.0001	Adjusted R²: 0.105 Regression ANOVA p-value: 0.019
Group	0.355	0.019	Adjusted R²: 0.105 Regression ANOVA p-value: 0.019
Level 2
Constant		< 0.0001	Adjusted R²: 0.751 Regression ANOVA p-value: < 0.0001
Group	0.143	0.080
Baseline rate	0.825	< 0.0001
Pneumococcal (Age)
Level 1
Constant		< 0.0001	Adjusted R²: 0.040 Regression ANOVA p-value: 0.106
Group	0.250	0.106	Adjusted R²: 0.040 Regression ANOVA p-value: 0.106
Level 2
Constant		< 0.0001	Adjusted R²: 0.846 Regression ANOVA p-value: < 0.0001
Group	0.078	0.212
Baseline rate	0.906	< 0.0001
Pneumococcal (Risk)
Level 1
Constant		< 0.0001	Adjusted R²: 0.003 Regression ANOVA p-value: 0.295
Group	0.164	0.295	Adjusted R²: 0.003 Regression ANOVA p-value: 0.295
Level 2
Constant		0.002	Adjusted R²: 0.936 Regression ANOVA p-value: < 0.0001
Group	−0.118	0.006
Baseline rate	0.996	< 0.0001
Zoster
Level 1
Constant		< 0.0001	Adjusted R²: 0.000 Regression ANOVA p-value: 0.940
Group	−0.012	0.940	Adjusted R²: 0.000 Regression ANOVA p-value: 0.940
Level 2
Constant		0.005	Adjusted R²: 0.879 Regression ANOVA p-value: < 0.0001
Group	−0.075	0.174
Baseline rate	0.943	< 0.0001