. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: Anesth Analg. 2011 Jun;112(6):1432–1437. doi: 10.1213/ANE.0b013e3182179424

Table 3.

Fetal acid-base status according to neonatal ADRB2 codon 16 genotype

	p.16Arg/Arg	p.16Arg/Gly	p.16Gly/Gly
All Neonates	N = 32	N = 46	N = 16
UA pH	7.31 ± 0.03^§	7.24 ± 0.12	7.27 ± 0.07
UA lactate (mmol/L)	2.67 ± 0.99^§§	4.55 ± 3.05	3.51 ± 1.71

Values are mean ± standard deviation.

One-way ANOVA, post hoc test: Bonferroni, and paired t-test.

^§

p.16Arg/Arg different from p.16Arg/Gly, p = 0.001 (95% C.I of difference 0.03 ~ 0.10); p.16Arg/Arg different from p.16Arg/Gly and p.16Gly/Gly combined (7.25± 0.11; p < 0.001, 95% C.I of difference 0.03 ~ 0.09).

^§§

p.16Arg/Arg different from p.16Arg/Gly, p < 0.001 (95% C.I of difference −2.85 ~ −0.91); p.16Arg/Arg different from p.16Arg/Gly and p.16Gly/Gly combined (4.28± 2.79; p < 0.001, 95% C.I of difference −2.40 ~ −0.82).

UA = umbilical artery.