Table 4.

Hazard ratios (95% CI) for the association between waiting more than 24 hours compared with surgery within 24 hours and 4-month mortality, stratified by ASA, patients aged 65–85, and patients aged > 85

Group	HR (CI) for waiting time > 24 h
Age 65–85	ASA 1–2	1.02 (0.85–1.22)
	ASA 3–4	1.11 (1.03–1.19)
Age > 85	ASA 1–2	1.09 (0.96–1.25)
	ASA 3–4	1.22 (1.15–1.30)

Waiting time < 24 h is reference value 1.00