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. Author manuscript; available in PMC: 2016 May 2.
Published in final edited form as: J Autism Dev Disord. 2016 Mar;46(3):1124–1130. doi: 10.1007/s10803-015-2646-8

Table 2.

Sample characteristics and relationship with GI symptoms

Total N No GI diagnosis
(n = 44)
Functional
constipation
(n = 32)
Non-retentive fecal
incontinence
(n = 2)
Other Rome-III
diagnoses (n = 4)
p value
Sex 82 0.40
  Male (%) 74 (90.2) 41 (93.2) 28 (87.5) 2 (100) 3 (75.0)
  Female (%) 8 (9.8) 3 (6.8) 4 (12.5) 0 (0) 1 (25.0)
Age: Mean (SD) 82 12.0 (4.3) 10.6 (3.4) 10.0 (4.2) 10.8 (4.4) 0.41
Race 82 0.42
  Caucasian (%) 75 (91.5) 38 (86.4) 31 (96.9) 2 (100) 4 (100)
  Other race (%) 7 (8.5) 6 (13.6) 1 (3.1) 0 (0) 0 (0)
Ethnicity 82 0.66
  Non-Hispanic/Latino (%) 79 (96.3) 43 (97.7) 30 (93.8) 2 (100) 4 (100)
  Hispanic/Latino (%) 3 (3.7) 1 (2.3) 2 (6.3) 0 (0) 0 (0.0)
Household income 71 1.0
  Less than 50k (%) 31 (43.7) 16 (42.1) 13 (44.8) 1 (50.0) 1 (50.0)
  50k or greater (%) 40 (56.3) 22 (57.9) 16 (55.2) 1 (50.0) 1 (50.0)
ADOS severity score: Mean (SD) 65 7.1 (2.6) 6.7 (1.9) 7.5 (2.1) 7.0 (1.0) 0.86
Verbal status 73 1.00
  Verbal 67 38 (90.5) 24 (92.3) 2 (100) 3 (100)
  Nonverbal 6 4 (9.5) 2 (7.7) 0 (0) 0 (0)
IQ: Mean (SD) 68 85.9 (23.5) 80.8 (24.9) 72.0 (5.7) 88.3 (21.5) 0.71