TABLE 3.

Adjusted Relative Risks for Mortality by Age and Surgical Timing

Interaction	Comparison		Adjusted Relative Risk (ARR)	95% CI, Lower Bound	95% CI, Upper Bound
Age, 18–64 y	>12 h to 24 h	Reference, ≤12 h	1.41	0.76	2.64
	>24 h to 48 h	Reference, ≤12 h	1.65	0.74	3.68
	>48 h to 30 d	Reference, ≤12 h	1.55	0.90	2.65
	>24 h to 48 h	Reference, >12 h to 24 h	1.17	0.46	2.96
	>48 h to 30 d	Reference, >12 h to 24 h	2.19	1.07	4.49
	>48 h to 30 d	Reference, >24 h to 48 h	2.56	1.07	6.10
Age, 65+ y	>12 h to 24 h	Reference, ≤12 h	1.38	0.38	4.98
	>24 h to 48 h	Reference, ≤12 h	1.59	0.60	4.22
	>48 h to 30 d	Reference, ≤12 h	3.17	1.33	7.52
	>24 h to 48 h	Reference, >12 h to 24 h	2.19	0.64	7.48
	>48 h to 30 d	Reference, >12 h to 24 h	4.37	1.39	13.76
	>48 h to 30 d	Reference, >24 h to 48 h	2.00	0.91	4.40
≤12 h	65+	Reference, 18 to 64	3.35	1.51	7.42
>12 h to 24 h	65+	Reference, 18 to 64	3.44	1.03	11.43
>24 h to 48 h	65+	Reference, 18 to 64	8.79	3.22	24.01
>48 h to 30 d	65+	Reference, 18 to 64	6.85	3.55	13.23

Note: Statistically significant ARRs are in bold.