Table 3.

Patient outcomes before and after inspection

	Before	After	Adjusted for background variables*	Adjusted for background and time†
All-cause mortality, 30 days from admission	424 (11.1%)	377 (10.5%)	0.81 (0.69 to 0.95)‡	1.25 (0.86 to 1.80) ‡§
Length of stay in days, mean (SD)	7.1 (7.8)	6.2 (6.1)	0.87 (0.84 to 0.90)¶	0.94 (0.86 to 1.03)¶
n	3813	3594	7371	7371

*Adjusted for age, organ dysfunction, sex and Charlson Comorbidity Index.

†Adjusted for secular trends entered as categorical variables per year, plus the other background variables.

‡OR.

§n=7360.

¶Incidence rate ratio.