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Table 5 The prevalence for specific symptoms of functional constipation

From: Constipation in adults with neurofibromatosis type 1

  NF1 patients
(n = 175)
Controls
(n = 91)
p
Fewer than three bowel movements a week 10.9% (CI: 6.7–16.4) 2.2% (CI: 2.7–7.7) 0.013
Hard or lumpy stools 15.4% (CI: 10.4–21.6) 2.2% (CI: 2.7–7.7) 0.001
Straining during bowel movements 17.7% (CI: 12.3–24.2) 5.5% (CI: 1.8–12.4) 0.006
Feeling of incomplete emptying after bowel movements 20.6% (CI: 14.8–27.3) 9.9% (CI: 4.6–17.9) 0.028
Sensation that the stool cannot be passed, (i.e. blocked) 13.1% (CI: 8.5–19.1) 2.2% (CI: 2.7–7.7) 0.004
Press on or around bottom or remove stool in order to complete a bowel movement 4.6% (CI: 2.0–8.8) 0% -
Difficulty relaxing or letting go during a bowel movement 10.3% (CI: 6.2–17.8) 2.2% (CI: 2.7–7.7) 0.018
  1. NF1 neurofibromatosis type 1, CI 95% Confidence Interval, p p-value
  2. Legend: The prevalence for specific symptoms of functional constipation present at least often within the group of patients with NF1 and the control group