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Table 2 Comparison between explanatory variables for subjects with FGID and SSF. Comparison between explanatory variables for subjects with FGID and SSF adjusted for sex and age. Ordinal variables are presented as median (range), dichotomous variables as proportion %, and continuous variables as mean (SD).

From: Psychological illness is commonly associated with functional gastrointestinal disorders and is important to consider during patient consultation: a population-based study

Variable FGID
n = 141
SSF
n = 97
P
AGE 45.7 (14) 52.4 (15) not relevant
SEX (female %) 66 53 0.026 ***
BMI 26.3 (4.7) 26.2 (4.2) Ns *
Education 3 (2–4) 3 (1–4) Ns **
Medical knowledge 10 (4–15) 11 (5–15) Ns **
GI sympt severity 4 (3–5) 0 (0–0) <0.0005 **
GI Consultation (ever) 72% 8% <0.0005 ***
Pain medicine (3 month) 77% 34% <0.0005 ***
GI medicine (3 month) 32% 1% <0.0005 ***
Previous PUD (ever) 12% 1% 0.006 ***
Coffee 2 (2–3) 2 (2–3) Ns **
Alcohol 4 (3–4) 3 (2–4) Ns **
Smoking 1 (1–2) 1 (1–2) Ns **
  1. * = Student's t-test ** = Mann-Whitney test *** = Pearson Chi-2 test