Table 4

ORs and HRs for subgroups for the pretrend and slope change related to reconfiguration of the emergency healthcare system

	Unadjusted analyses				Adjusted analyses*
	No. of patient contacts	OR/HR	95% CI	P value	No. of patient contacts	OR/HR	95% CI	P value
Myocardial infarction In-hospital mortality	114 164				104 580
Pretrend		0.927	0.902 to 0.953	<0.001		0.934	0.914 to 0.956	<0.001
Slope change		1.006	0.951 to 1.064	0.84		0.973	0.943 to 1.005	0.093
30-day mortality	114 164				105 008
Pretrend		0.945	0.934 to 0.957	<0.001		0.951 *	0.937 to 0.966	<0.001
Slope change		0.996	0.979 to 1.014	0.685		0.979 *	0.96 to 0.998	0.031
Stroke In-hospital mortality	218 237				207 362
Pretrend		0.953	0.932 to 0.975	<0.001		0.954	0.931 to 0.978	<0.001
Slope change		0.994	0.968 to 1.02	0.634		0.982	0.955 to 1.01	0.214
30-day mortality	218 237				201 366
Pretrend		0.982	0.973 to 0.992	<0.001		0.978 *	0.966 to 0.99	<0.001
Slope change		0.984	0.972 to 0.997	0		0.978 *	0.965 to 0.992	0.003
Pneumonia In-hospital mortality	446 154				404 398
Pretrend		0.925	0.903 to 0.948	<0.001		0.934	0.912 to 0.956	<0.001
Slope change		1.013	0.979 to 1.047	0		1.005	0.974 to 1.037	0.749
30-day mortality	446 154				404 408
Pretrend		0.958	0.952 to 0.964	<0.001		0.966 *	0.959 to 0.974	<0.001
Slope change		1.001	0.993 to 1.009	1		0.997 *	0.988 to 1.006	0.526
Aortic aneurysm In-hospital mortality	4049				3768
Pretrend		1.025	0.991 to 1.059	0.15		0.986	0.942 to 1.032	0.537
Slope change		0.938	0.89 to 0.99	0.019		0.919	0.874 to 0.967	0.001
30-day mortality	4049				3811
Pretrend		1.024	0.999 to 1.049	0.064		0.995 *	0.963 to 1.027	0.743
Slope change		0.962	0.93 to 0.995	0.026		0.947 *	0.916 to 0.98	0.002
Bowel perforation In-hospital mortality	13 194				11 954
Pretrend		0.912	0.893 to 0.932	<0.001		0.934	0.9 to 0.97	<0.001
Slope change		0.986	0.948 to 1.025	0.473		0.973	0.94 to 1.006	0.11
30-day mortality	13 194				13 173
Pretrend		0.939	0.917 to 0.962	<0.001		0.958†	0.933 to 0.985	0.002
Slope change		0.976	0.945 to 1.008	0.136		0.975†	0.949 to 1.003	0.077
Hip fracture In-hospital mortality	107 959				90 145
Pretrend		0.967	0.938 to 0.997	0.033		0.955	0.926 to 0.984	0.003
Slope change		1.001	0.952 to 1.052	0.972		1	0.961 to 1.04	0.995
30-day mortality	107 959				90 556
Pretrend		0.999	0.985 to 1.013	0.88		1.003 *	0.982 to 1.024	0.779
Slope change		0.987	0.969 to 1.006	0.172		0.984 *	0.962 to 1.005	0.139
Major trauma In-hospital mortality	43 841				41 377
Pretrend		1.09	0.981 to 1.21	0.108		1.096	0.959 to 1.252	0.177
Slope change		0.86	0.752 to 0.983	0.027		0.818	0.721 to 0.928	0.002
30-day mortality	43 841				41 378
Pretrend		1.045	1.008 to 1.083	0.019		1.001 *	0.959 to 1.044	0.966
Slope change		0.924	0.875 to 0.976	0.004		0.955 *	0.897 to 1.018	0.164

Adjusted analyses were performed on a complete case basis.
*Adjusted for seasonality, the changes in the out-of-hours system in the Capital Region, the implementation of a referral system to emergency departments, sex, age, CCI, ethnicity, education and income level.
†Adjusted for seasonality, the changes in the out-of-hours system in the Capital Region, the implementation of a referral system to emergency departments, sex, age, CCI and income level.
CCI, Charlson Comorbidity Index.