TABLE 2.

Presence of pleocytosis and EV RT-PCR results for 2001, 2002, and 2003^a

Year and age group	No. of samples with indicated EV RT-PCR result when pleocytosis is:				Sensi- tivity (%)	Speci- ficity (%)	PPV (%)	NPV (%)
	Present		Absent
	PCR+	PCR−	PCR+	PCR−
2001
All ages	100	43	17	83	85	66	70	83
≤2 mo	28	5	18	20	65	80	85	57
>2 mo and ≤18 yr	59	19	2	47	97	71	76	96
>18 yr	13	19	0	16	100	46	41	100
2002
All ages	39	77	5	98	89	56	34	95
≤2 mo	19	10	5	13	79	57	66	72
>2 mo and ≤18 yr	18	32	0	50	100	61	36	100
>18 yr	2	35	0	35	100	50	5	100
2003
All ages	77	74	6	109	93	60	51	95
≤2 mo	11	11	5	37	69	77	50	88
>2 mo and ≤18 yr	60	38	1	44	98	54	61	98
>18 yr	5	26	0	28	100	52	16	100
All years
All ages	216	194	28	290	89	60	53	91
≤2 mo	58	26	25	70	70	73	69	74
>2 mo and ≤18 yr	137	89	3	141	98	61	61	98
>18 yr	20	80	0	79	100	50	20	100

^aPCR+, positive EV RT-PCR results; PCR−, negative EV RT-PCR results; NPV, negative predictive value.