From: Association of small intestinal bacterial overgrowth with Parkinson’s disease: a systematic review and meta-analysis
Predictors
No. of studies (study size)
P-value
I2
OR (95% CI)
Bloating
5(401)
0.28
72%
1.67 [0.65–4.27]
Duration
3(186)
0.88
91%
− 0.25 [− 3.64–3.14]
Constipation
4(368)
0.22
85%
0.38 [0.08–1.78]
Diarrhea
0.86
0
1.06 [0.58–1.91]