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Table 1 Demographic and clinical indicators of sample.

From: The association of mast cells and serotonin in children with chronic abdominal pain of unknown etiology

Variable   Overall (n= 48) Group
All subjects were pain positive
Statistic
    Non-Inflammatory
( n = 26)
Inflammatory
( n = 22)
 
   n (%) n (%) n (%) p value
2/t-test)
Sex      
  Male 22 (45.8) 11 11 0.59
  Female 26 (54.2) 15 11  
Race      
  Caucasian 43 (89.6) 23 20 0.58
  Asian 2 (4.2) 1 1  
  African American 1 (2.1) 1 0  
  Mixed 1 (2.1) 0 1  
  Hispanic 1 (2.1) 1 0  
Age (M ± SD)
Range (yrs)
  11.9 ± 2.9
(5-17)
11.9 ± 2.4
(8-16)
12 ± 2.9
(5-17
0.21
BMI (M ± SD)
Range
  18.9 ± 4.3
(13-38.8)
19.5 ± 5.2
(13.8-38.8)
18.2 ± 4.3
(13-24.5)
0.431
Lactase Deficiency   24 (48) 16 8 0.387
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