Table 5.

Multivariate linear regression analysis based on all 1461 days (2013–2016), with number of severe trauma admissions per day as dependent variable. Winter season serves as reference (constant term)

	Regression coefficient	Standard error	p value	95% confidence interval
Constant	3.21	0.13	<.001	2.95–3.46
Spring	1.07	0.18	<.001	0.72–1.42
Summer	1.98	0.18	<.001	1.63–2.32
Fall	0.63	0.18	<.001	0.28–0.97
Saturday	0.59	0.18	0.001	0.24–0.93
Foehn	0.87	0.30	0.004	0.23–1.47