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

73.3%

73.6% ^a

52.9% ^{b c}

92.9%

94.3%^a

90.9% ^{b c}

73.3%

82.3%

64.2% ^{b c}

92.9%

90.9% ^a

86.2% ^{b c}

88.8%

88.8% ^a

81.9% ^{b c}