Table 3. Results of one-sample t test for convergence of mean z scores of coronary artery diameters to zero in 4 models.

Coronary artery	Model	Mean difference	95% CI	P value*
LMCA	McCrindle	−0.410	−0.545 to −0.274	0.000
	Olivieri	−0.150	−0.292 to −0.008	0.038
	Dallaire	0.279	0.128 to 0.430	0.000
	Japanese	0.400	0.240 to 0.559	0.000
LAD	McCrindle	−0.652	−0.785 to −0.519	0.000
	Olivieri	−0.387	−0.506 to −0.268	0.000
	Dallaire	0.236	0.131 to 0.342	0.000
	Japanese	−0.034	−0.157 to 0.088	0.582
RCA	McCrindle	−0.653	−0.785 to −0.521	0.000
	Olivieri	−0.894	−1.034 to −0.754	0.000
	Dallaire	−0.504	−0.622 to −0.386	0.000
	Japanese	−0.509	−0.658 to −0.361	0.000

LMCA, left main coronary artery; LAD, left anterior descending coronary artery; RCA, right coronary artery; CI, confidence interval.