Weekend admissions may be associated with poorer recording of long-term comorbidities: a prospective study of emergency admissions using administrative data

Table 10 Comparison of secondary diagnoses between weekend and weekday emergency admissions within 30 days of death (secondary diagnosis fields within the first episode)

Condition	Percentage of admissions with the diagnosis recorded in the secondary diagnosis fields^a			Common odds ratio^b for weekend versus week (95% confidence interval)	Cochran-Mantel-Haenszel test p-value^c	Breslow-Day test p-value^d
Condition	Weekday admissions	Weekend admissions	Total		Cochran-Mantel-Haenszel test p-value^c	Breslow-Day test p-value^d
Chronic pulmonary disease	82.44	81.95	82.31	0.960 (0.876 to 1.051)	0.371	0.189
Diabetes	89.34	88.18	89.03	0.885 (0.792 to 0.989)	0.030	0.230
Congestive heart failure	62.57	59.99	61.89	0.887 (0.803 to 0.980)	0.019	0.481
Dementia	87.87	88.85	88.16	1.086 (0.916 to 1.287)	0.343	0.025
Hemiplegia / paraplegia	45.19	44.32	44.95	0.944 (0.725 to 1.230)	0.672	0.281
Metastatic cancer	86.01	84.72	85.67	0.907 (0.630 to 1.306)	0.599	0.112

^aPatients with at least two emergency admissions with the relevant condition recorded between 2009 and 2011 and a further admission within 30 days of death in 2011–2013 where the relevant condition was not the primary diagnosis
^bCommon odds ratio computed from trust-level odds ratios
^cCochran-Mantel-Haenszel test for odds ratio not equal to one
^dBreslow-Day test for homogeneity of odds ratios across trusts

ISSN: 1472-6963