Skip to main content

Table 5 Multivariate adjusted model investigating the association between the day of discharge from hospital and mortality at 30 days. Model 9 is adjusted for patient characteristics, non-surgical treatments, day of surgery and surgical procedure. Model 10 is further adjusted for discharge destination. N (multiple imputation) = 181,568; N (complete cases) = 122,586

From: The association between the day of the week of milestones in the care pathway of patients with hip fracture and 30-day mortality: findings from a prospective national registry – The National Hip Fracture Database of England and Wales

   Model 9 Model 10
  Discharge specification OR (95% CI) P OR (95% CI) P
Multiple imputation (MI) Daily indicators Sunday 1    1   
Monday 0.601 (0.484, 0.745) 3.6 × 10–6 0.625 (0.504, 0.776) 2.0 × 10–5
Tuesday 0.623 (0.504, 0.768) 1.0 × 10–5 0.646 (0.523, 0.797) 4.7 × 10–5
Wednesday 0.599 (0.485, 0.740) 2.0 × 10–6 0.622 (0.504, 0.769) 1.1 × 10–5
Thursday 0.642 (0.520, 0.791) 3.4 × 10–5 0.666 (0.540, 0.822) 1.5 × 10–4
Friday 0.668 (0.543, 0.822) 1.4 × 10–4 0.695 (0.564, 0.856) 6.1 × 10–4
Saturday 0.746 (0.591, 0.942) 0.014 0.760 (0.601, 0.960) 0.021
In hours 1    1   
Out of hours 1.193 (1.098, 1.296) 3.0 × 10–5 1.180 (1.086, 1.282) 9.5 × 10–5
Sunday discharge MTWTFS 1    1   
Sunday 1.572 (1.292, 1.913) 6.4 × 10–6 1.515 (1.244, 1.844) 3.6 × 10–5
In hours 1    1   
Out of hours 1.187 (1.093, 1.290) 4.8 × 10–5 1.174 (1.081, 1.276) 1.4 × 10–4
Complete cases (CC) Daily indicators Sunday 1    1   
Monday 0.599 (0.456, 0.787) 2.3 × 10–4 0.622 (0.473, 0.817) 6.5 × 10–4
Tuesday 0.633 (0.485, 0.825) 7.2 × 10–4 0.654 (0.501, 0.853) 0.0017
Wednesday 0.636 (0.487, 0.829) 8.1 × 10–4 0.657 (0.504, 0.857) 0.0020
Thursday 0.645 (0.495, 0.841) 0.0012 0.668 (0.513, 0.871) 0.0029
Friday 0.707 (0.544, 0.918) 0.0092 0.733 (0.564, 0.952) 0.020
Saturday 0.785 (0.586, 1.050) 0.10 0.795 (0.594, 1.065) 0.12
In hours 1    1   
Out of hours 1.242 (1.122, 1.376) 3.0 × 10–5 1.230 (1.111, 1.363) 6.8 × 10–5
Sunday discharge MTWTFS 1    1   
Sunday 1.523 (1.188, 1.951) 8.8 × 10–4 1.472 (1.149, 1.887) 0.0023
In hours 1    1   
Out of hours 1.234 (1.114, 1.366) 5.3 × 10–5 1.222 (1.104, 1.353) 1.1 × 10–4
  1. MTWTFS, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday; OR odds ratio; CI Confidence Interval
  2. In hours 08:00 to 17:00
  3. Omnibus Wald test for daily discharge specification (Models 9) (CC) P = 0.0018 (MI) P = 0.00003; (Models 10) (CC) P = 0.0053 (MI) P = 0.0002. Omnibus Wald test for MTWTFS days of discharge are equal to one another (Model 9) (CC) P = 0.07 (MI) P = 0.057; (Model 10) (CC) P = 0.10 (MI) P = 0.09