Table 2.

Probit coefficients from simple probit regressions

Independent variable	Dependent variables
	NP-PA		Complexity		Referral
	96–97	98–99	96–97	98–99	96–97	98–99
NP-PA			0.179**	0.196**	0.155**	0.144**
Complexity					0.763***	0.671***
% Gatekeeper	0.008**	0.007**	0.004**	0.004**	0.004**	0.004**
% Capitation	0.007**	0.007**	0.001**	0.003**	0.002**	0.003**
Organisational setting
Large group	1.560***	1.755***	0.039	0.149**	0.034	0.167**
HMO	1.871***	1.909***	0.247**	0.290**	0.043	0.179**
Small group	0.532**	0.638**	0.012	− 0.007	0.075	0.059
Other	1.454***	1.591***	0.315**	0.168*	0.037	− 0.026

^*Notes: Statistically significant at the .05 level;

^**Statistically significant at the .01 level;

^***Statistically significant at the .001 level.