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. 2011 Nov 23;6(11):e27937. doi: 10.1371/journal.pone.0027937

Table 4. Influence of the duration of type-specific hr-HPV detection on persistence in 2nd study year.

Type-specific hr-HPV history N persistent N (%) OR (95% CI) P-value
Detected since baseline 63 43 (68.3) 4.99 (2.67-9.32) 0.000
Detected since study month 6 70 40 (57.1) 3.09 (1.74-5.51) 0.000
Newly detected at month 12 166 50 (30.1) 1 (ref)