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Table 3 Comparison of PAMG-1, fFN and cervical length < 25 mm in terms of delivery within seven days

From: Use of cervicovaginal PAMG-1 protein as a predictor of delivery within seven days in pregnancies at risk of premature birth

Metrics (95% CI) PAMG-1 fFN Cervical length < 25 mm
SN 73.3% 73.6% a 52.9% b c
SP 92.9% 94.3%a 90.9% b c
PPV 73.3% 82.3% 64.2% b c
NPV 92.9% 90.9% a 86.2% b c
Validity of test 88.8% 88.8% a 81.9% b c
  1. a PAMG-1 vs fFN p > 0.05
  2. b PAMG-1 vs cervical length < 25 mm p < 0.05
  3. cfFN vs cervical length < 25 mm p < 0.05