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. Author manuscript; available in PMC: 2018 Apr 3.
Published in final edited form as: J Matern Fetal Neonatal Med. 2013 Dec 16;27(8):757–769. doi: 10.3109/14767058.2013.844123

Table VI.

Diagnostic performance of the MR score, IL-6, and MMP-8 for spontaneous delivery <34 weeks of gestation

Deliveries < 34 weeks
Sensitivity 95%CI Specificity 95%CI
MR score ≥ 3 67.5% (27/40) 50.9–81.4 76.7% (46/60) 64.0–86.6
IL-6 >2.6 ng/mL 80% (32/40) 64.4–91.0 66.7% (40/60) 53.3–78.3
IL-6 >11.4 ng/mL 70% (28/40) 53.5–83.4 75% (45/60) 62.1–85.3
MMP-8 >23 ng/mL 85% (34/40) 70.2–94.3 61.7% (37/60) 48.2–73.9

MR score: Mass restricted score; IL-6: Interleukin 6; MMP-8: Matrix metalloproteinase 8.