Table 3.
Multivariate Logistic Regression Analyses for Risk Factors of Irritable Bowel Syndrome
| Characteristics | β | SE | WALS | P-value | OR (95% CI) |
|---|---|---|---|---|---|
| Sex | |||||
| Females | 1 | ||||
| Males | 0.1 | 0.3 | 0.1 | 0.748 | 1.11 (0.57–2.15) |
| Age (yr) | −0.0 | 0.2 | 0.1 | 0.774 | 0.94 (0.64–1.39) |
| BMI (kg/m2) | 0.0 | 0.0 | 0.6 | 0.454 | 1.04 (0.94–1.15) |
| Education | |||||
| Engineering | 1 | ||||
| Liberal arts | 0.6 | 0.5 | 1.5 | 0.216 | 1.79 (0.71–4.52) |
| Medicine | 0.2 | 0.3 | 0.4 | 0.522 | 1.23 (0.65–2.35) |
| Residence | |||||
| City | 1 | ||||
| Rural area | −0.5 | 0.4 | 1.4 | 0.244 | 0.62 (0.28–1.38) |
| Town | −0.0 | 0.4 | 0.0 | 0.896 | 0.95 (0.44–2.03) |
| Only child | |||||
| Yes | 1 | ||||
| No | −0.0 | 0.4 | 0.0 | 0.940 | 0.97 (0.48–1.97) |
| Single parent | |||||
| No | 1 | ||||
| Yes | −0.3 | 0.6 | 0.4 | 0.531 | 0.70 (0.23–2.11) |
| Anxiety | |||||
| No | 1 | ||||
| Yes | 0.0 | 0.8 | 0.0 | 0.989 | 1.01 (0.21–4.78) |
| Depression | |||||
| No | 1 | ||||
| Yes | 1.7 | 0.8 | 5.7 | 0.017 | 5.55 (1.36–22.71) |
| Experience of abuse | |||||
| No | 1 | ||||
| Yes | 1.4 | 0.9 | 2.6 | 0.109 | 4.22 (0.72–24.50) |
| Suicidal intention | |||||
| No | 1 | ||||
| Yes | 0.7 | 0.6 | 1.5 | 0.226 | 2.05 (0.64–6.52) |
SE, standard error; WALS, weighted-average least squares; OR, odds ratio; CI, confidence interval; BMI, body mass index.