Panel A: Baby’s maturity—HDSS compared to ultrasound (gold standard) | |||||
 |  | Ultrasound |  | Sensitivity (HDSS) = 65.7% Specificity (HDSS) = 94.5% Positive predictive value (HDSS) = 74.6% Negative predictive value (HDSS) = 96.4% Kappa [CI] = 0.65 [0.55, 0.76] | |
 |  | Preterma | Termb | n | |
HDSS | Preterm | 44 | 15 | 59 | |
Term | 23 | 399 | 422 | ||
n | 67 | 414 | 481 | ||
Panel B: Baby’s maturity—survey compared to ultrasound (gold standard) | |||||
 |  | Ultrasound |  | Sensitivity (survey) = 59.7% Specificity (survey) = 92.8% Positive predictive value (survey) = 38.5% Negative predictive value (survey) = 92.8% Kappa [CI] = 0.36 [0.26, 0.46] | |
 |  | Preterm | Term | n | |
Survey | Preterm | 40 | 64 | 104 | |
Term | 27 | 350 | 377 | ||
n | 67 | 414 | 481 |