Relationship between dietary fiber intake and chronic diarrhea in adults

Table 3 Univariate logistic analysis of chronic diarrhea, dietary fiber and covariates

Variable	OR (95%CI)	P value
Dietary fiber T1	1 (Ref.)
Dietary fiber T2	0.872 (0.763-0.997)	0.0452
Dietary fiber T3	0.820 (0.717-0.938)	0.0038
Dietary fiber T4	0.830 (0.726-0.950)	0.0067
Male	1 (Ref.)
Female	1.124 (1.020-1.237)	0.0178
Age	1.006 (1.004-1.009)	< 0.001
BMI	1.031 (1.024-1.038)	< 0.001
Non-Hispanic whites	1 (Ref.)
Non-Hispanic black	0.875 (0.768-0.996)	0.0439
Mexican Americans	0.808 (0.689-0.946)	0.0083
Hispanics and other races	1.106 (0.932-1.311)	0.2477
Education	0.832 (0.787-0.88)	< 0.001
Married	1 (Ref.)
Unmarried	0.936 (0.818-1.071)	0.3338
Poverty-income ratio ≤ 1.30	1(Ref)
Poverty-income ratio 1.31-3.5	0.743 (0.66-0.836)	< 0.001
Poverty-income ratio > 3.5	0.627 (0.551-0.712)	< 0.001
Smoke	0.93 (0.812-1.064)	0.2895
Dink	0.976 (0.878-1.086)	0.6558
Diabetes	1.414 (1.221-1.638)	< 0.001
Hypertension	1.382 (1.256-1.522)	< 0.001

Dietary fiber consumption was classified into four quartiles: T1 (< 25%), T2 (≥ 25% to 50%), T3 (≥ 50% to 75%), and T4 (≥ 75%). BMI: Body mass index; OR: Odds ratio.