. Author manuscript; available in PMC: 2010 Oct 1.

Published in final edited form as: JACC Cardiovasc Imaging. 2009 Oct;2(10):1175–1183. doi: 10.1016/j.jcmg.2009.06.014

Table 2.

Baseline coronary artery calcium scores in MESA participants who underwent coronary angiography. Variables are presented as mean ± standard deviation.

CT data	Underwent angiography	Not known to have undergone angiography	P- value^*

Coronary calcium score (units)^†

Left main (mg)	22.9±70.5	4.2±30.4	<0.0001
Left anterior descending (mg)	190.4±266.5	59.1±157.2	<0.0001
Left circumflex (mg)	141.9±271.8	28.3±111.1	<0.0001
Right coronary artery (mg)	145.3±321.1	39.9±180.8	<0.0001
Total score	528.4±772.2	136.3±399.4	<0.0001

Mann-Whitney U test was used to compare CACP scores due to their skewed distribution.

^†

Coronary calcium score: for individual coronary arteries- calcium mass score was used (mg) and for the entire coronary bed (Total score) Agatston score was used (see Methods).