TABLE 3.

Results of linear model selection to predict cervical length

Independent variable	Value for variable (95% CI) in predicting cervical length
d-Lactic acid	131.94 (−39.35, 303.23)
TIMP-1	−0.89 (−1.49, −0.30)b
p62	−70.35 (−146.38, 5.68)a
Age	0.23 (0.11, 035)b
Mixed race	0.36 (−1.46, 2.17)
Black race	−5.08 (−8.01, −2.16)b
Constant	28.27 (23.95, 32.60)b
No. of observations	340
R2	0.143
Adjusted R2	0.128
Residual SE	7.89 (df = 333)
F statistic	9.30 (df = 6; 333)c

^aNumbers given for the slope estimates are the estimate with the 95% confidence interval (CI) in parentheses.

^bP < 0.01.

^cP < 0.1.