Table 1.

Prevalence of chronic constipation by age group.

	Study population	CC	Prevalence, % (95% CI)
Total	1568	77	4.9 (3.8–6.0)
Age (years)
50–59	572	26	4.5 (2.8–6.3)
60–69	653	32	4.9 (3.2–6.6)
70–79	226	12	5.3 (2.4–8.2)
≥80	117	7	6.0 (1.7–10.3)

CC – chronic constipation; CI – confidence interval.