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. 2018 Mar 22;315(1):G140–G157. doi: 10.1152/ajpgi.00288.2017

Table 1.

Participant characteristics

Variable (range) Microarray
nCounter
Group IBS HC IBS HC
n 20 10 31 14
%Women 50 50 51.6 42.9
Age 33.8 (10.8) 31.7 (8.5) 34 (12) 35.4 (8.4)
BMI 24.4 (6.4) 24.7 (2.5) 24.5 (5.5) 25.8 (3)
Ethnicity
    Hispanic 1 (5%) 2 (20%) 4 (12.9%) 1 (7.1%)
Race
    Asian 5 (25%) 3 (30%) 8 (25.8%) 3 (21.4%)
    Black 5 (10%) 3 (10%) 8 (9.7%) 3 (7.1%)
    White 5 (50%) 3 (40%) 8 (48.4%) 3 (57.1%)
    Other/mixed 3 (15%) 2 (20%) 5 (16.1%) 2 (14.3%)
Bowel habit subtype
    IBS-C 10 (50%) 15 (48.4%)
    IBS-D 10 (50%) 16 (51.6%)
HAD anxiety score (0-21) 5.6 (6) 3.3 (2.8) 6.4 (6)* 2.9 (2.4)
HAD depression score (0-21) 3 (3.6) 1.9 (2.1) 3 (3.1) 1.4 (1.8)
Overall IBS severity (0-20) 10.4 (4.4) 10.1 (4)
Abdominal pain (0-20) 9.8 (4.6) 9.7 (4.2)

Values are means (SD) or frequency (%). nCounter, counter cohort is inclusive of microarray cohort. HC, healthy control; IBS, irritable bowel syndrome; BMI, body mass index; HAD, Hospital Anxiety and Depression; IBS-C, IBS with constipation; IBS-D, IBS with diarrhea.

*

P < 0.05 between IBS and HCs.