. 2015 Mar 16;2015(1):5. doi: 10.1186/s13633-015-0001-7

Table 1.

Patient characteristics

	CPP n = 19	PA n = 22	ENP n = 21
Age^a (mean years ± SD)	6.94 ± 1.1	6.60 ± 1.0	8.80 ± 0.9
Race^b (% non-Caucasian)	32%	46.67%	50%
BMI^c (mean z-score ± SD)	1.09 ± 0.6	1.66 ± 0.8	1.22 ± 0.6
Post-menarchal (percentage)	2 (11%)	0	7 (33%)

^aResults of planned contrast indicated significant difference between ENP group and CPP and PA groups, p < .001, equal variances assumed.

^bResults of chi-square test indicated group differences in percentage of racial minorities, p = .03.

^cResults of planned contrast indicated significant difference between PA group and CPP group, p = .01, as well as PA group and ENP group, p = .04, equal variances not assumed.