Statistical complexity of reasons for encounter in high users of out of hours primary care: analysis of a national service

Table 3 Simple and multiple regression coefficients for variables associated with State Entropy

	Coefficient	95%CI	p-value
Simple regression – all high users
Number of calls	0.01	0.010 to 0.010	<.001
Number of RfE categories	0.35	0.350 to 0.350	<.001
Number of BDS systems	0.51	0.490 to 0.520	<.001
Age (decades)	0.00	−0.004 to 0.004	0.86
Sex: Male	−0.09	−0.110 to −0.070	<.001
Mental Health RfE	0.34	0.310 to 0.370	<.001
Multiple regression - all high users
Number of calls	−0.017	−0.018 to − 0.017	<.001
Number of RfE categories	0.406	0.403 to 0.408	<.001
Sex: Male	−0.021	−0.029 to − 0.013	<.001
Mental Health RfE	−0.046	− 0.056 to − 0.036	< 0.001
Multiple regression - users with 5–30 contacts
Number of calls	− 0.047	−0.048 to − 0.046	<.001
Number of RfE categories	0.452	0.450 to 0.454	<.001
Sex: Male	− 0.014	− 0.02 to − 0.008	< 0.001
Mental Health RfE	0.046	0.056 to 0.036	< 0.001

RfE Reason for encounter, BDS Bodily distress syndrome
Age excluded from the multiple regression as no significant effect in univariate regression. BDS excluded from multiple regression because of multicollearity.

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