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Table 8 Comparison of diagnoses between weekend and weekday emergency admissions: regardless of primary diagnosis (all diagnosis fields from all episodes)

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

Condition

Percentage of admissions with the diagnosis recorded in any fielda

Common odds ratiob for weekend versus week (95% confidence interval)

Cochran-Mantel-Haenszel test p-valuec

Breslow-Day test p-valued

Weekday admissions

Weekend admissions

Total

Chronic pulmonary disease

80.40

79.77

80.25

0.958 (0.927 to 0.989)

0.009

0.028

Diabetes

90.28

89.72

90.14

0.940 (0.898 to 0.985)

0.009

0.316

Congestive heart failure

58.75

56.34

58.15

0.902 (0.861 to 0.946)

0.000

0.558

Dementia

85.25

85.47

85.31

1.018 (0.949 to 1.092)

0.616

0.582

Hemiplegia / paraplegia

44.13

44.30

44.18

0.991 (0.893 to 1.099)

0.858

0.034

Metastatic cancer

78.63

78.56

78.62

1.000 (0.863 to 1.157)

0.995

0.620

  1. aPatients with at least two emergency admissions with the relevant condition recorded between 2009 and 2011 and a further admission in 2011–2013
  2. bCommon odds ratio computed from trust-level odds ratios
  3. cCochran-Mantel-Haenszel test for odds ratio not equal to one
  4. dBreslow-Day test for homogeneity of odds ratios across trusts