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Table 2 Comparison of the data of HPV 52 and 16 in the first 20 batches and all 466 batches

From: A unique Levey–Jennings control chart used for internal quality control in human papillomavirus detection

HPV type

52

16

Frequency

862

573

Batches

466

466

Means of the positive rates

3.66%

2.38%

SD

2.80%

2.19%

Means of the first 20 batches positive rates

3.24%

2.34%

SD

2.20%

2.29%

t-test, P-values

0.409 > 0.05

0.942 > 0.05