Table 2.

Association between CSF culture and CSF biochemistry

Variable	Simple logistic regression			Multiple logistic regression
	Wald statistic	Crude ORa (95% CIb)	P-value	Wald statistic	Adj ORd (95% CIb)	P-value c
CSF protein
High		1
Low	14.898	0.722 (0.15–0.254)	< 0.001
CSF glucose
Abnormal		1
Normal	10.290	0.852 (0.012–0.345)	0.001
CSF appearance
Non-clear		1
Clear	6.362	0.611 (0.065–0.709)	0.012
CSF gram stain
Positive		1			1
Negative	16.437	0.877 (0.005–0.159)	< 0.001	16.437	0.029 (0.005–0.159)	< 0.001

^acrude odds ratio,

^bconfidence interval,

^cadjusted for CSF gram stain,

^dadjusted odds ratio