The Role of Dietary Energy and Macronutrients Intake in Prevalence of Irritable Bowel Syndromes

Table 1

Correlation between prevalence of IBS and dietary factors according to diagnostic criteria.

Diagnostic criteria	Correlation coefficients	P value	Statistical methods
Manning
Energy intake/kcal	0.029	0.936	Spearman
Protein%	0.093	0.715	Spearman
Carbohydrates%	-0.349	0.156	Spearman
Fat%	0.252	0.313	Pearson
Questionnaire
Energy intake/kcal	0.029	0.936	Pearson
Protein%	-0.507	0.065	Spearman
Carbohydrates%	0.535	0.060	Spearman
Fat%	0.104	0.724	Spearman
Rome I
Energy intake/kcal	-0.362	0.128	Spearman
Protein%	0.255	0.253	Spearman
Carbohydrates%	0.104	0.644	Spearman
Fat%	-0.045	0.843	Spearman
Rome II
Energy intake/kcal	-0.167	0.414	Spearman
Protein%	0.141	0.483	Spearman
Carbohydrates%	0.076	0.706	Spearman
Fat%	0.033	0.869	Spearman
Rome III
Energy intake/kcal	0.063	0.742	Pearson
Protein%	0.569	≤0.001	Pearson
Carbohydrates%	-0.313	0.710	Spearman
Fat%	0.114	0.522	Spearman

IBS: irritable bowel syndrome; P < 0.05 (2-tailed); %: percent contribution to energy intake.