Performance of BVBlue Rapid Test in Detecting Bacterial Vaginosis among Women in Mysore, India

Table 3

Performance of BVBlue Rapid Test compared to the results of Amsel’s criteria and Nugent score among sexually active women in Mysore, India, between August 2009 and January 2010.

	Variables	𝑁	Sens% (95% CI)	Spec% (95% CI)	PPV% (95% CI)	NPV% (95% CI)
All women	Amsel’s criteria^a	323	51 (46–57)	94 (92–97)	82 (78–87)	78 (74–83)
	Nugent score^b	266	38 (32–44)	95 (92–97)	90 (87–94)	54 (48–60)
Symptomatic women	Amsel’s criteria^a	188	52 (44–59)	95 (92–98)	85 (80–90)	79 (73–85)
	Nugent score^b	156	37 (30–45)	95 (92–99)	91 (87–96)	54 (46–61)

aAll women were included in this analysis comparing Amsel’s criteria to BVBlue Rapid Test. Women with intermediate flora included as negatives (0–6) and NS of 7–10 considered BV positive. ^b Women with intermediate flora (NS of 4 to 6) excluded from this analysis comparing Nugent score to BVBlue Rapid Test. Sens: sensitivity; Spec: specificity; PPV: positive predictive value; NPV: negative predictive value.