Table 1.

Prevalence of HPV-16 and HPV-18 in 120 cervical specimens.

		HPV-18		Total
		Positive	Negative
HPV-16	Positive	18	16	34
	Negative	4	82	86
Total		22	98	120

Positives for both HPV types, 38/120=31.6%. McNemar test: P=0.012