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Table 2 Interaction among HPV genotypes in infected women with two or more genotypes. First column correspond to HPV genotypes tested in women, each row show that percentage of frequency of co-infection with other genotypes identified in the next eleven columns. Last column show the number samples with each genotype. Data represent as percentage of co-infection for each genotype. See Additional file 2

From: High prevalence of co-infection between human papillomavirus (HPV) 51 and 52 in Mexican population

Type 6 11 16 18 30 31 33 35 45 51 52 n
6 - 33.33* 28.57* 9.52 9.52 8.33 35.71* 15.48 1.19 39.29* 38.10* 84
11 30.11* - 30.11* 4.3 4.3 5.38 17.20 5.38 0 32.26* 20.43 93
16 15.09* 17.61* - 5.03 4.40 7.55 25.16* 13.84 3.14 26.42* 20.13* 159
18 21.62 10.81 21.62 - 0 13.51 24.32 0 5.41 27.03 32.43 37
30 21.62 10.81 18.92 0 - 5.41 16.22 8.11 0 16.22 24.32 37
31 12.07 8.62 20.69 8.62 3.45 - 13.79 5.17 1.72 22.41 27.59 58
33 22.05* 10.96 27.4* 6.16 4.11 5.48 - 3.42 0 15.07 11.64 146
35 24.53 9.43 41.51* 0 5.66 5.66 9.43 - 0 5.66 3.77 53
45 9.09 0 45.45 18.18 0 9.09 0 0 - 9.09 9.09 11
51 18.23* 16.57* 23.2* 5.52 3.31 7.18 12.15 1.66 0.55 - 51.93* 181
52 19.75* 11.73 19.75* 7.41 5.56 9.88 10.49 1.23 0.62 58.02* - 162
  1. z-test: p < 0.05, p < 0.01, *p < 0.001