Cutoff volume of dietary fiber to ameliorate constipation in children.
OBJECTIVE
To evaluate the proper ingested volume of dietary fiber for relieving constipation in children.


METHODS
During a 3-year period, we prospectively evaluated the correlation of intake volume of dietary fiber with improvement of constipation in children. Patients were categorized into younger (3-7 years) and older (8-14 years) children. The evaluation period lasted 12 weeks. A good improvement was defined as the child exhibiting at least 60% relief of the constipation symptoms during the observation period. Freedom from constipation was observed during the last 4 weeks.


RESULTS
The study population consisted of 422 patients (213 younger, 209 older), with a mean age of 7.89 +/- 4.71 years. Baseline daily dietary fiber intake of the younger and older groups was 5.97 +/- 2.35 g and 9.83 +/- 3.51 g, respectively. 227 cases (53.8 %) showed improvement of constipation, and 49.1 % of the patients had relief of constipation. Greater intake of dietary fiber was positively associated with good improvement of constipation in both groups (P = .002, and P < .001). Cutoff volumes of daily dietary fiber intake in the relief of constipation were 10 g in the younger group and 14.5 g in the older group.


CONCLUSIONS
The cutoff of dietary fiber intake needed to relieve constipation increased with age, achievable in a 12-week intervention.
Chao
Hsun-Chin
HC
Division of Gastroenterology, Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan.
Lai
Ming-Wei
MW
Kong
Man-Shan
MS
Chen
Shih-Yen
SY
Chen
Chien-Chang
CC
Chiu
Cheng-Hsun
CH
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003248:Constipation / Q000178:diet therapy*; D004032:Diet; D004043:Dietary Fiber / Q000627:therapeutic use*; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D008297:Male; D010372:Pediatrics / Q000379:methods; D013997:Time Factors; D016896:Treatment Outcome