Fig. 2

Constipation symptoms in the constipated respondents. No significant difference exists between men and women in the prevalence of any of the constipation symptoms (a). Bonferroni correction of the comparison of constipation symptoms in three age groups shows significantly different prevalences of incomplete defecation between the middle and oldest age group (p = 0.038), of daily failure to defecate between the youngest and the oldest and the middle and the oldest age group (p = 0.046 and p = 0.073, respectively), and of anal pain between the youngest and middle age group (p = 0.012) (b)