. Author manuscript; available in PMC: 2017 Oct 19.

Published in final edited form as: Am J Perinatol. 2015 Jun 17;33(1):34–39. doi: 10.1055/s-0035-1555122

Table 4.

Sensitivity, specificity, positive predictive value, and negative predictive value of the variable “mechanical ventilation or nCPAP at 34 weeks’ postmenstrual age” as a predictor of home oxygen therapy at discharge

PMA	Incidence of home oxygen (%)^a	24 ^0/7–25 ^6/7 wk (gestation at birth)				Incidence of home oxygen (%)^a	26 ^0/7–27 ^6/7 wk (gestation at birth)
PMA	Incidence of home oxygen (%)^a	PPV (%)	Specificity (%)	Sensitivity (%)	NPV (%)	Incidence of home oxygen (%)^a	PPV (%)	Specificity (%)	Sensitivity (%)	NPV (%)
30 wk	61	39	48	90	85	54	54	78	76	91
31 wk	70	70	74	67	71	69	69	89	72	90
32 wk	86	86	91	57	70	79	79	95	60	88
33 wk	90	90	96	43	65	92	92	99	48	88
34 wk	100	100	100	33	63	100	100	100	40	83

Abbreviations: nCPAP, nasal continuous airway pressure; PMA, postmenstrual age; PPV, positive predictive value; NPV, negative predictive value.

Note: For definitions see ►Table 3.

Incidence of home oxygen therapy at discharge among infants who still need “mechanical ventilation or nCPAP” at a specific postmenstrual age (between 30 and 34 wk PMA).