Molecular test
		BV	Normal
Modified Hay/Ison	BV	68	12	80
	Normal	8	200	208
		76	212	288

Table1. The kappa coefficient value was calculatedκ = 0.82 (0.71–0.94) between a modified Hay/Ison criteria for the diagnosis of BV compared with a molecular test using six different pathogens and an algorithm using the presence of lactobacilli. This gives a sensitivity of 0.89, (0.81-0.95) a specificity of 0.94 (0.90-0.98), positive predictive value of 0.85(0.76-0.91) and negative predictive value of 0.96 (0.93-0.98).

		Molecular test
		BV	Normal
Modified Hay/Ison	BV	69	7	76
	Normal	7	205	212
		76	212	288

Table2. After re-evaluation of the air-dried wet smears the kappa coefficient value was recalculated κ = 0.87 (0.76–0.99) between the modified Hay/Ison criteria for the diagnosis of BV and a molecular test using 6 different pathogens and an algorithm using the presence of lactobacilli. This gives a sensitivity of 0.91 (0.82-0.95), a specificity of 0.97(0.93-0.98) , positive predictive value of 0.91(0.82-0.95) and negative predictive value of 0.97 (0.93-0.98).