Advice from the health insurer as a channelling strategy: a natural experiment at a Dutch health insurance company

Table 1 Service quality scores for the teams during P0 and P1

	P0 Jan-Mar ‘16	N	Age (SD)	P1 20 Oct ‘16– Mar ‘17	N^a	Age (SD)	Difference in service quality scores
Pilot team	7.44	1037	57,9 (13,4)	8.14	959	57,2 (12,6)	+.70
Team M	7.47	998	57,7 (12,9)	7.67	1659	59,4 (12,0)	+.20
Team D	7.56	848	58,7 (13,0)	7.71	2258	60,2 (12,9)	+.15

^a N during P1 differs slightly from numbers in Fig. 3, because of a small number of missing values on the question of the quality of service

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