Symptoms of those who do and do not use probiotics
| Characteristics | Probiotics N=130 (27%) | No probiotics N=359 (73%) | P value† |
| Reasons for procedure | 0.05 | ||
| Routine screening* | 60 (25%) | 182 (75%) | |
| Symptoms | 31 (39%) | 49 (61%) | |
| Unsure | 4 (16%) | 21 (84%) | |
| Other | 35 (27%) | 97 (73%) | |
| Symptoms | 0.03 | ||
| No symptoms | 41 (21%) | 149 (78%) | |
| Some symptoms | 89 (31%) | 200 (69%) | |
| Specific gastrointestinal symptoms | |||
| Bloating | 52 (43%) | 70 (57%) | <0.01 |
| Constipation | 25 (38%) | 41 (62%) | 0.03 |
| Pain | 30 (36%) | 54 (64%) | 0.04 |
| Diarrhoea | 22 (35%) | 40 (65%) | 0.10 |
| Swallowing problems | 7 (35%) | 13 (65%) | 0.40 |
| Heartburn | 44 (33%) | 90 (67%) | 0.06 |
| Incontinence | 7 (32%) | 15 (68%) | 0.58 |
*Including screening/surveillance procedures for colon cancer or polyps and for Barrett’s oesophagus.
†χ2 test.