Table 4 Crude and multivariable Cox proportional hazards regression, presenting the crude Hazard Ratio (HR) and adjusted HR (aHR) for the time to discharge

 1–29

0.79 (0.61–1.03)

0.0796

0.84 (0.64–1.09)

0.1833

 30–44

0.97 (0.79–1.20)

0.8071

1.09 (0.88–1.35)

0.4255

 45–59

0.99 (0.82–1.20)

0.9433

1.09 (0.89–1.32)

0.4121

Wave 2

0.61 (0.51–0.73)

< 0.001

0.60 (0.50–0.73)

< 0.001

 75–84

0.85 (0.72–0.99)

0.0417

0.89 (0.75–1.06)

0.1830

 85–94

0.70 (0.58–0.85)

< 0.001

0.72 (0.58–0.89)

0.0022

 95+

0.64 (0.33–1.25)

0.1935

0.77 (0.39–1.51)

0.4405

Male

0.97 (0.84–1.12)

0.7133

0.93 (0.80–1.08)

0.3394

 Ex-smoker

1.07 (0.93–1.24)

0.3373

1.10 (0.94–1.28)

0.2235

 Current smoker

0.98 (0.71–1.35)

0.9104

0.97 (0.70–1.35)

0.8677

CRP > 40

1.15 (0.99–1.33)

0.0712

1.07 (0.92–1.24)

0.4077

Diabetes

0.91 (0.78–1.06)

0.2364

0.92 (0.78–1.09)

0.3529

CAD

0.96 (0.82–1.13)

0.6435

1.01 (0.85–1.20)

0.9002

 Yes

0.87 (0.71–1.08)

0.2059

0.97 (0.78–1.20)

0.7580

 Yes & on treatment

1.09 (0.93–1.28)

0.2812

1.08 (0.92–1.28)

0.3466

 CFS 4

0.83 (0.66–1.03)

0.0960

0.89 (0.71–1.12)

0.3103

 CFS 5–6

0.71 (0.59–0.85)

< 0.001

0.78 (0.64–0.95)

0.0157

 CFS 7–8

0.71 (0.57–0.87)

0.0014

0.79 (0.63–0.99)

0.0380