Table 8.

Performance of the prediction model for preterm birth based on original beta coefficients at different cut-off points for pregnant women who had ANC at DMCSH, 2020–2022

Cut point	Sensitivity	Specificity	PPV	NPV	Accuracy	LR+	LR-
(≥ 0 0.1255)	82.93%	91.28%	53.68%	97.77%	90.37%	9.5083	0.1870
(≥ 0 0.2125 )	82.93%	93.26%	60.00%	97.82%	92.14%	12.3049	0.1831
(≥ 0 0.3243 )	76.42%	94.75%	63.95%	97.06%	92.76%	14.5492	0.2488
(≥ 0 0.4545 )	68.29%	96.33%	69.42%	96.14%	93.29%	18.6236	0.3291
(≥ 0.5234)	55.28%	97.62%	73.91%	94.71%	93.02%	23.2425	0.4580

LR+ Positive Likelihood Ratio, LR Negative Likelihood Ratio, NPV Negative Predictive Value, PPV Positive Predictive Value