Test results (* p < 0.05 versus positive cases)

	1 hr Visual %	1 hr CBPR	3 hr Visual %	3 hr CBPR
Negative	69%* (114/166)	0.96±0.27*	71%* (118/166)	0.95±0.21*
Equivocal	5%* (9/166)	0.96±0.20*	3%* (5/166)	1.13±0.48*
Positive	26% (43/166)	2.43±0.73	26% (43/166)	2.45±0.62