Table 1. Relationship of age (WHO standard) with the overall detection rate of MC.

Age (year)	Total case	Case with MC	Case without MC	Detection rate (%)
≤44	115,862	992	114,870	0.85
45–59	126,492	1,887	124,605	1.49
60–74	82,699	2,094	80,605	2.53
75–89	17,700	1,110	16,590	6.27
≥90	169	7	162	4.14

Notes.

MC

Melanosis coli

WHO

World Health Organization