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. 2015 Oct 1;10(10):e0137725. doi: 10.1371/journal.pone.0137725

Table 1. Demographics and functional GI disorders (FGID) in ASD and NT siblings.

The study characteristics of the ASD and NT siblings are listed below. For categorical variables, the percent are shown in parenthesis (). For continuous variables the mean ± standard deviations are listed.

Subject Characteristics ASD n = 59 NT n = 44 P-value
Family matched 37 37
Gender (Male)* 52 (88%) 21 (48%) 0
Age (years) 10.3 ± 1.8 10.0 ± 1.8
Race/Ethnicity
        White/Non-Hispanic 49 (83%) 33 (75%) 0.16
        Hispanic 2 (3%) 4 (9%) 0.13
        Black 4 (7%) 3 (7%) 0.51
        Other/Unknown 4 (7%) 4 (9%) 0.34
FGID present (all patients) 25 (42%) 13 (30%) 0.1
FGID present (family matched) 15 (41%) 12 (32%) 0.31
    H1. Vomiting and Aerophagia
        H1a. Adolescent rumination syndrome 0 0
        H1b. Aerophagia 2 2 0.44
        H1c. Cyclic Vomiting Syndrome 0 1 0.33
    H2. Abdominal-pain related FGIDs
        H2a. Functional Dyspepsia 0 0
        H2b. Irritable Bowel Syndrome 7 3 0.21
        H2c. Functional Abdominal Migraine 1 3 0.13
        H2d. Childhood Functional Abdominal Pain 0 2 0.12
        H2d1 Childhood Functional Abdominal Pain Syndrome 0 2 0.12
    H3. Constipation and fecal incontinence
        Functional Constipation* 17 6 0.035
        Nonretentive Fecal Incontinence 3 1 0.3