. 2023 Feb 8;9:e40311. doi: 10.2196/40311

Table 7.

The results of paired t tests for the number needed to test to diagnose cases of tuberculosis among presumptive cases.

	Before the EWORS^a	After the EWORS	Difference	t₍₆₆₈₎	P value
Total number needed to test (SE)	14.047 (0.2229)	10.255 (0.1457)	3.792 (0.2663)	14.237	<.001
Hot spot number needed to test (SE)	16.788 (0.3756)	8.829 (0.1522)	7.958 (0.4053)	19.633	<.001
Non–hot spot number needed to test (SE)	12.006 (0.1498)	11.316 (0.1953)	0.690 (0.2462)	2.802	.004

^aEWORS: early warning outbreak recognition system.