TABLE 4.

Probability calculations and actual outcomes for women with a previous PTDa

SubjectProbability of PTDOutcome
10.0002Term
20.0155Term
30.0393Term
40.0559Term
50.0655Term
60.0734Term
70.0759Term
80.0779Term
90.0835Term
100.0853Term
110.1102Term
120.1149Term
130.1336Term
140.1766Term
150.2378Term
160.2378Term
170.2881Term
180.6093Term∗b
190.9414Term∗b
200.1988Preterm∗b
210.3204Preterm
220.5244Preterm
230.5604Preterm
240.6063Preterm
250.7116Preterm
260.7941Preterm
270.9221Preterm
280.9422Preterm
  • a Data shown are for 28 of 36 subjects without any missing data.

  • b ∗, probability calculation with a cutoff of 0.3 varies from actual outcome. All three subjects thus denoted had total anaerobic counts that were significantly higher than those observed for the rest of the group (P < 0.034).