Table 4.

Multivariate logistic regression analysis on the risk factors of intracranial infection

Factors	β	s	χ	p	OR	95%CI
The length of hospital stay ≥10 days	0.605	0.278	4.741	0.029	1.832	1.062–3.158
Consecutive operation	0.769	0.236	10.592	0.001	2.158	1.358–3.430
Duration of surgery≥4 h	0.458	0.218	4.408	0.036	1.581	1.031–2.425
EVD use	0.527	0.232	5.147	0.023	1.694	1.074–2.670
Duration of EVD ≥ 7 days	0.993	0.239	17.256	0.000	2.699	1.689–4.311