Table 2.

Patient population characteristics of the general practices and association with out-of-hours care use

Variable	Low use group	High use group
	Mean (range)	Mean (range)
Percentage of foreignersa	9.8 (1.6-26.4)	27.7 (3.8-82.2)**
Percentage of patients aged 0 to 4 years	4.8 (2.5-9.7)	5.6 (3.0-9.9)*
Distance from general practice to out-of-hours GP cooperative (kilometers)	13.4 (3.0-30.8)	3.4 (0.9-11.0)**

^aPeople with at least one parent born outside the Netherlands.

*p < 0.01, **p < 0.001.