Table 4.

Ulcer healing influencing factors, simple- and multiple linear regression—Time to complete wound healing [days].

	Simple linear regression		Multiple linear regression A
Parameter	Regression coefficient	p value (95% CI)	Regression coefficient	p value (95% CI)
ASA classification	16.04	0.001 [6.406; 25.668]**	9.28	0.15 [−3.259; 21.818]
Stage ulcers	19.65	0.001 [9.222; 30.068]**	21.62	0.001 [8.446; 34.793]**
Stoma	−15.79	0.03 [−30.094; −1.481]*	−18.19	0.03 [−34.792; −1.594]*
Smoker	−4.80	0.45 [−17.255; 7.654]	6.03	0.40 [−8.064; 20.114]
Age [years]	0.41	0.02 [0.066; 0.749]*	0.04	0.88 [−0.423; 0.494]
Body mass index [kg/m2]	0.42	0.34 [−0.444; 1.285]	0.41	0.43 [−0.625; 1.449]
Duration since SCI [months]	0.01	0.35 [−0.016; 0.044]	−0.001	0.97 [−0.033; 0.032]
Time of surgery after the onset of the ulcer	−0.001	0.86 [−0.015; 0.012]	0.03	0.07 [−0.003; 0.057]

*significant with p < 0.05.

**significant with p < 0.01.