https://www.selleckchem.com/pr....oducts/ar-c155858.ht
3, 67.9, 23.5 and 88.7% respectively for deliveries occurring ≤ 34+0 weeks and 54.2, 75.4, 55.8, and 74.2%, respectively, for deliveries occurring ≤ 37+0 weeks. Diagnostic efficiency of the test was 65.7% (≤ 34+0 weeks) and 67.7% (≤ 37+0 weeks). Positive likelihood ratios were 1.6 (≤ 34+0 weeks) and 2.2 (≤ 37+0 weeks). Negative likelihood ratios were 0.7 (≤ 34+0 weeks) and 0.6 (≤ 37+0 weeks). Results of our study show that phIGFBP-1 diagnostic test is not accurate enough in predicting preterm birth before 34+0 or 37+0 weeks, and ther