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Demographics and Baseline Symptoms
| Characteristics | Probiotics (n = 24) | Placebo (n = 29) | P value |
|---|---|---|---|
| Male sex No. (%) | 22 (92) | 25 (86) | .68 |
|
| |||
| Age, mean (SD), y | 54 (7) | 56 (9) | .38 |
|
| |||
| Brief Symptom Inventory 18, No. (%) | 23 (17) | 30 (18) | .20 |
| Somatization subscale | 8 (6) | 9 (6) | .48 |
| Depression subscale | 7 (6) | 10 (8) | .09 |
| Anxiety subscale | 9 (8) | 11 (7) | .33 |
