Incidence and Predicted Risk Factors of Pressure Ulcers in Surgical Patients: Experience at a Medical Center in Taipei, Taiwan

Table 3

Multivariate analysis using logistic regression model of risk factors associated with the pressure ulcers among study population (𝑛=297).

Variable	Types of pressure ulcers (yes versus no)
	Immediately		30 minutes later
	OR	(95% CI)	OR	(95% CI)
Gender (female versus male)	0.98	0.39–2.61	0.65	0.18–2.27
Operation age (yrs)	1.03	1.00–1.08	1.06	1.00–1.12
Type of anesthesia (general anesthesia) (yes versus no)	17.06	2.09–49.43	5.29	0.56–46.71
Type of operation position (nonsupine versus supine)	32.26	4.48–48.79	18.18	1.32–52.63
Type of surgery
General surgery	1.00	—	1.00	—
Neurosurgery	1.29	0.20–8.58	5.57	0.28–19.69
Orthopedics surgery	3.33	1.05–10.61	9.29	1.05–28.50
Cardiac surgery	6.98	0.72–39.88	22.60	1.20–43.85
Heart-lung machine used (yes versus no)	5.24	0.51–43.55	7.58	0.51–49.28
Admission Braden score	0.95	0.91–0.99	0.93	0.80–1.09
Number of nursing intervention	0.94	0.90–0.98	0.95	0.91–0.99
The Hosmer-Lemeshow test	𝜒^2(8)=3.79,𝑃=0.88		𝜒^2(8)=4.17,𝑃=0.84
c-statistics	0.914		0.917