. 2020 Mar 24;323(12):1141–1150. doi: 10.1001/jama.2020.0837

Table 3. Secondary Outcomes Associated With Implementation of Screening for Biliary Atresia.

Outcome	No. (%)		Reciprocal of risk ratio (95% CI)	P value^a
Outcome	Before screening implementation (n = 24)	After screening implementation (n = 19)	Reciprocal of risk ratio (95% CI)	P value^a
Underwent the Kasai portoenterostomy by 30 d of life	3 (12.5)	11 (57.9)	4.6 (1.7-14.0)	.003
Normalization of bilirubin level by 90 d after undergoing the Kasai portoenterostomy^b	10 (41.7)	15 (78.9)	1.9 (1.1-3.3)	.03
Transplant-free survival 1 y after undergoing the Kasai portoenterostomy	17 (70.8)	18 (94.7)	1.3 (1.0-1.9)	.06

^{^a}

Calculated using the Fisher exact test.

^{^b}

Determined by conjugated testing.