Table 7.

Multivariate logistic regression analysis of independent risk factors for CSDH recurrence.

Index	β	SE	Wald x2	P	Exp (B)	95%CI
Constant	−10.077	3.439	8.588	0.003	0	–
Age	0.085	0.054	2.529	0.112	1.089	0.98–1.21
Brain atrophy	1.07	0.523	4.186	0.041	2.915	1.046–8.121
Brain reexpansion status	1.09	0.517	4.45	0.035	2.975	1.08–8.194
Preoperative hematoma width	1.048	0.505	4.302	0.038	2.853	1.059–7.683
Preoperative hematoma density	–	–	2.318	0.314	–	–
Preoperative hematoma density (1)	0.541	0.536	1.018	0.313	1.717	0.601–4.911
Preoperative hematoma density (2)	1.22	0.918	1.764	0.184	3.387	0.56–20.487
Postoperative subdural space	0.879	0.539	2.66	0.103	2.41	0.837–6.933
Nursing intervention	1.294	0.563	5.288	0.021	3.647	1.211–10.987