Table 1 Sensitivity, specificity, and predictive values for the BirthWeigh III scale relative to the digital neonatal scale for identification of LBW infants (<2500 g) and infants <2000 g.

	Identification of infants <2500 g	Identification of infants <2000 g
	Estimate (95% CI)	Estimate (95% CI)
Sensitivity	93.7 (91.3 to 95.7)	87.8 (79.2 to 93.7)
Specificity	97.6 (96.7 to 98.4)	99.6 (99.2 to 99.8)
Positive predictive value	93.9 (91.5 to 95.8)	91.9 (84.0 to 96.7)
Negative predictive value	97.6 (96.6 to 98.3)	99.4 (98.9 to 99.7)