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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Pain. 2013 Jun 20;154(10):2088–2099. doi: 10.1016/j.pain.2013.06.024

Table 1.

Study Demographics and Characteristics

IBS CONTROL F p
MALES FEMALES MALES FEMALES
N 20 27 29 38 - -

PREMENOPAUSAL - 25 - 35 - -

AGE (yrs) 36.05 (12.56) 31.41 (10.35) 35.61 (12.46) 31.74 (13.19) a) 0.00
b) 3.39
a) .100
b) .068

IBS Symptom Severity 3.05 (0.76) 3.00 (0.62) 1.03 (0.19) 1.03 (0.16) a) 27.35
b) 0.44
a) <.001**
b) .508

ANXIETY (HAD) 6.80 (4.51) 5.59 (3.54) 2.83 (2.62) 3.63 (2.50) a) 14.58
b) 4.26
a) <.001**
b) .041*

DEPRESSION (HAD) 3.70 (3.7) 3.23 (2.55) 1.90 (2.09) 0.95 (1.11) a) 21.43
b) 6.62
a) <.001**
b) .011*

Measures: IBS Symptom Severity: 1=None; 2=Mild; 3=Moderate; 4=Severe; 5=Very Severe

HAD: Hospital Anxiety and Depression Measure

Premenopausal status was determined using a question and female subjects were classified as premenopausal and postmenopausal

Groups: IBS, Irritable Bowel Syndrome; HC, Healthy Controls

a) IBS vs. HC; b) Males vs. Females

Significance levels:

*

p<.05,

**

p<.001