Table 1.

Descriptive Data for FAP and Healthy Youth

	FAP (n = 63)	Healthy Youth (n = 77)	FAP vs. Healthy Youth
	N (%)	N (%)	X2
Sex			3.6
Male	21 (33)	38 (49)
Female	42 (67)	39 (51)
Race			19.6**
Caucasian	53 (84)	37 (48)
Non-Caucasian	10 (16)	40 (52)
	M (SD)	M (SD)	t
Age	14.4 (1.9)	14.8 (1.8)	1.25
Somatic symptoms	30.8 (16.0)	8.2 (7.0)	10 43***
Functional disability	11.3 (7.4)	2.3 (5.1)	8.18***
CPM task
P-60 temperature	46.8 (2.0)	46.8 (1.6)	0.16
Pre-conditioning (mean)	58.2 (17.1)	59.8 (13.3)	0.61
Pre-conditioning 10 s	61.6 (16.7)	64.2 (14.4)	0.98
Pre-conditioning 20 s	57.9 (19.5)	58.7 (15.3)	0.27
Pre-conditioning 30 s	54.5 (23.9)	56.2 (17.7)	0.50
-----10 minute break-----
Water bath 0 s	32.6 (24.1)	31.4 (22.5)	0.30
Water bath 10 s	37.2 (26.5)	35.2 (25.3)	0.45
Water bath 20 s	39.7 (25.9)	31.1 (23.0)	2.02*
Conditioning 40 s	60.9 (18.7)	55.5 (18.8)	1.64
Conditioning 50 s	55.9 (17.7)	46.3 (20.3)	2.84**
Conditioning 60 s	51.1 (22.9)	39.9 (20.0)	2.96**

^***p < .001;

^**p < .01;

^*p<.05.

FAP = functional abdominal pain; CPM = conditioned pain modulation; CPM pain ratings were made on a 0 – 100 scale; s = seconds.