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habitual bowel elimination while sitting on common toilet seats.
A considerable proportion of the population with n ormal bowel
movement frequency has difficulty emptying their bowels. The
principal cause of this problem may be the obstructive nature of
the rectoanal angle and its relationship to the posture normally
used in defecation.
Objective To assess the relationship between functional constipation
with the posture (sitting vs squatting) during defecation
Methods We conducted a cross-sectional study in November
2010. Participants aged 12- 15 years were selected consecutively
from a junior high school in Medan . Parents and children filled
questionnaires and were interviewed. Functional constipation was
assessed based on the Rome III criteria.
Results Sixty-five students enrolled in the study. There was no
statistically significant diffe rences in subjects' characteristics.
T here was a significant correlation between functional constipation
with posture during defecation in children (RR= 0.06, 95%CI
0.02 to 0.25; P=0.0001). Functional constipation was more likely
occured in children with sitting (12/20) th an squatting posture
(4/45) during defecation.
Conclusion We found th at posture in defecation is correlated
to functional con stipation in children.
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