Table 3.

Multiple linear regression of factors associated with midline catheter indwelling duration

Risk factor	B	SE	β	t	P-value
Constant	25.365	14.472	-	1.753	0.082
Age	0.163	0.097	0.155	1.681	0.096
Sex, female*	–6.481	2.612	–0.241	–2.481	0.015
Body mass index*	–0.872	0.267	–0.306	–3.263	0.001
Vein size	0.496	1.635	0.029	0.303	0.762
Vein type	2.763	2.561	0.104	1.079	0.283
Reason for catheter insertion	–0.383	1.427	–0.025	–0.268	0.789
Intensive care unit	2.121	4.037	0.051	0.525	0.600

AdjR²=0.163, F=3.030 (P=0.006), Durbin–Watson=0.341.

B, unstandardized coefficients; SE, standard error; β, standardized coefficients.

*P<0.05.