Table 4.

Comparison of Karius Test and Blood Culture Results

Timepoint (Days Since Fever Onset)	PPA % (Frequency)	NPA % (Frequency)	90% Confidence Interval
1	90 (9/10)		60.6–99.5
		31.1 (14/45)	19.9–44.3
2 (days 3–4)	0 (0/2)		0–77.6
		16.7 (4/24)	5.9– 34.2
3 (days 5–7)	0 (0/0)		…
		7.7 (1/13)	0.4–31.6
4 (days 7–10)	100 (1/1)		…
		30.8 (4/13)	11.3–57.3
5 (days 9–13)	0 (0/1)		…
		75 (6/8)	40–95.4
Composite PPA, NPA	71.4 (10/14)	28.2 (29/103)

Abbreviations: NPA, negative percent agreement; PPA, positive percent agreement.