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Table 2 Comparison of the number of bands, Shannon–Weiner diversity index and the proportion of samples in each cluster

From: Comparison of the vaginal microbiota diversity of women with and without human papillomavirus infection: a cross-sectional study

   Cluster 1 Cluster 2 Cluster 3 Cluster 4 Cluster 5 Cluster 6 P value
Number of bands   2.00 ± 1.414 9.69 ± 6.223 6.36 ± 3.054 6.17 ± 1.329 4.13 ± 2.187 1.32 ± 0.478 <0.001*
Shannon–Weiner index   0.55 ± 0.777 2.07 ± 0.717 1.75 ± 0.469 1.80 ± 0.214 1.23 ± 0.293 0.22 ± 0.331 <0.001#
Group HPV-negative 1 (50.0%) 4 (30.8%) 1 (7.1%) 2 (33.3%) 13 (81.3%) 17 (89.5%)  
  HPV-positive 1 (50.0%) 9 (69.2%) 13 (92.9%) 4 (66.7%) 3 (18.7%) 2 (10.5%) <0.001*
  Total 2 (2.9%) 13 (18.6%) 14 (20.0%) 6 (8.6%) 16 (22.9%) 19 (27.1%)  
  1. *The Chi-squared test was used to compare the proportion of samples in each category for HPV-negative versus HPV-positive women. p < 0.05 was considered statistically significant.
  2. # The Kruskal-Wallis test was performed to compare the diversity indices, and p < 0.05 was interpreted to be statistically significant.