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Slide Presentation of the 2007 Annual Meeting of AHRQ

Table 3: Adjusted Odds Ratios Indicating the Effects of Nurse Working Conditions on Patient Safety Outcomes

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Variable	CLBSI (n = 6385)		CAUTI (n = 6030)		VAP (n = 5462)		30-d Mortality (n = 15846)		Decubitus Ulcer (n = 9554)
Variable	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Administrative processes: nurse working conditions
Organizational climate	1.19†	1.05-1.36	0.61†	0.44-0.83	1.03	0.79-1.34	0.97	0.90-1.02	1.06	0.83-1.37
Staffing
Second quartile	0.97	0.55-1.17	0.79	0.50-1.25	0.71	043-1.19	0.89	0.77-1.02	0.94	0.64-1.39
Third quartile	0.32†	0.15-0.70	0.96	0.44-2.07	0.68	0.39-1.21	0.81†	0.69-0.95	0.69*	0.49-0.98
Fourth quartile	0.57	0.20-1.67	0.86	0.37-1.98	0.21†	0.08-0.53	0.89	0.76-1.05	1.01	0.63-1.61
Overtime
Second quartile	0.67	0.24-1.88	2.53‡	1.66-3.86	0.76	0.24-2.39	0.99	0.80-1.21	1.39	0.82-2.34
Third quartile	0.69	0.33-1.44	3.54‡	1.95-6.40	0.88	0.39-1.95	1.03	0.80-1.32	1.16	0.67-2.03
Fourth quartile	0.33†	0.15-0.72	4.72‡	2.21-10.05	1.26	0.53-2.96	1.06	0.91-1.31	1.91*	1.17-3.11
Nurses' wages	0.91	0.73-1.13	1.15	0.96-1.36	1.16	0.91-1.48	0.97	0.90-1.02	0.98	0.83-1.23
Structures of care
Profit
Second quartile	0.68	0.25-1.81	1.85*	1.04-3.31	4.47‡	2.42-8.27	1.04	0.90-1.21	1.76*	1.21-2.78
Third quartile	0.85	0.31-2.31	1.48	0.58-3.74	1.51	0.55-4.08	0.85	0.67-1.06	0.80	0.44-1.44
Fourth quartile	0.11‡	0.04-0.30	1.11	0.56-2.17	2.55†	1.20-5.43	0.85	0.71-1.03	0.81	0.41-1.57
Magnet	0.67	0.30-1.50	0.74	0.23-2.29	1.04	0.23-4.71	0.92	0.73-1.17	1.57	0.93-2.65
Pseudo R²	0.19‡		0.15‡		0.15‡		0.18‡		0.14‡

All models are estimated with robust standard errors clustering for intensive care unit. All models are adjusted for a comprehensive set of (1) patient characteristics, including severity of illness, comorbidities, demographics, and socioeconomic status, and (2) setting characteristics, including hospital size and teaching status and ICU type and case-mix.
Key: *P < 0.01; †P < 0.05; ‡P < 0.001.

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