CHAPTER SEVEN 274 TABLE 7-25. DISTRIBUTION OF TRICHIASIS OR ENTROPION (TIE) BY SELECTED ZONES (NBS 1981) Estimated Population with TIE Estimated Prevalence per 100 Percentage of All TIE in Nepal Sample N Zone Karnali Bheri Seti Mahakali Remainder of Nepal Subtotal Missing TIE status 479 3,095 1,717 2,322 31,593 39,206 681 3,874 20,797 7,813 3,449 22,396 58,329 2.1 2.0 1.3 0.4 0.2 0.4 6.6% 35.7 13.4 5.9 38.4 100.0 Total 39,887 58,329 0.4 100.0 Source: FR7.002C AN.6 REP.l TABLE 7-26. AGE AND SEX DISTRIBUTION OF TRICHIASIS OR ENTROPION (TIE) (NBS 1981) Estimated Prevalence with T/E Estimated Prevalence per 100 Percentage of All T/E in Nepal Semple N Age and Sex Males 0-29 30-49 50+ Females 0-29 30--49 50+ Subtotal Missing age, sex, or TIE status 19,932 13,110 4,324 2,498 14,664 3,150 5,548 5,966 0.2. 0.1 0.4 0.7 0.6 0.2 0.9 2.6 0.4 25.2% 5.4 9.5 10.S 74.8 12.3 24.9 37.6 100.0 19,252 12,971 3,809 2,472 39,184 43,664 7,142 14,577 21,945 58,328 703 0 Total 39,887 58,329 (1.4 100.0 Source: FR7.002C AN.l REP.V3004.l per 100). For both males and females there is a steady increase in the prevalence r a t e of trichiasis and entropion with age. While trachoma showed little relationship to age, the cumulative exposure to trachoma leads to increasing prevalence of its complications,