Table 2.

Change in number of unplanned hospital admissions and the cumulative costs from hospital stays starting within 30 days following the index contact according to GP characteristics, presented per 1,000 GP contacts. Linear regression analyses of all Norwegian out-of-hours contacts 2008–2016.

Thirty-day unplanned hospital usea	Patients 0–10 years		Patients 11–69 years		Patients 70 years+
	Change	95% CI	Change	95% CI	Change	95% CI
Thirty-day unplanned admissions per 1,000 patient contacts
GPb age per 10 years	−5	−7 to −4	−5	−6 to −4	−8	−11 to −5
Male vs female GPs	−17	−20 to −14	−14	−16 to −12	−16	−22 to −10
GP specialists vs not	−8	−10 to −6	−11	−13 to −9	−5	−10 to 0
GPs with low OOHc experience vs not	12	8 to 16	8	5 to 11	6	−3 to 15
Highest vs lowest quarter in prior admission proportiond	35	31 to 39	58	54 to 61	80	71 to 90
Costs from unplanned admissions starting within 30 days (EURO) per 1,000 patient contacts
GP age per 10 years	−6,284	−12,196 to −373	−11,538	−20,108 to −2,969	−23,580	−61,524 to 14,365
Male vs female GPs	−33,546	−46,739 to −20,354	−25,988	−43,405 to −8,570	−24,057	−104,685 to 56,571
GP specialists vs not	−2,353	−12,516 to 7,811	−24,390	−39,353 to −9,427	68,106	−1,014 to 137,225
GPs with low OOHc experience vs not	15,789	−3,555 to 35,133	24,336	−821 to 49,493	38,445	−74,995 to 151,884
Highest vs lowest quarter in prior admission proportiond	54,301	36,557 to 72,045	127,344	99,685 to 155,002	412,353	285,561 to 539,145

^aGeneral practitioner.

^bThe associations were computed by comparing patients in the same 10-year age groups visiting the same out-of-hours services on the same weekdays, during the same month and same time period of the day, and were adjusted for patient sex, age, and age squared.

^cOut-of-hours.

^dGP prior admission proportion the previous four calendar months.