. Author manuscript; available in PMC: 2017 Apr 1.

Published in final edited form as: Am J Med Genet A. 2015 Dec 10;170(4):825–837. doi: 10.1002/ajmg.a.37495

TABLE III.

Conditional ^* Survival Estimates (Expressed as Percentage) for Children With Trisomy 13 and Trisomy 18 in Nine US States, 1999–2007 Birth Cohort

Phenotype	Number live births	Number deaths	Survival probability (95%CI)
Phenotype	Number live births	Number deaths	<1 day	<7 day	<28 day	<1 year	<5 years^a
Trisomy 13	693	625	74.6 (71.2, 77.7)	57.8 (53.5, 62.0)	59.2 (53.4, 64.5)	45.2 (37.8, 52.3)	82.5 (69.8, 90.2)
Trisomy 18	1.113	984	78.1 (75.5, 80.4)	67.2 (64.0, 70.2)	70.9 (67.0, 74.4)	36.0 (31.4, 40.6)	86.8 (78.7, 92.0)

Likelihood of survival to time (t) given child survived to time (t-1).

Includes children born in 1999–2005. Data from IL were excluded because no vital status data beyond 1 year were available.

CI, confidence interval.