CHILDHOOD BLINDNESS 353 TABLE 8-30. PREVALENCE, ESTIMATED NUMBER OF CASES, AND DISTRIBUTION BY FAMILY OWNERSHIP OF A RADIO, ACTIVE XEROPHTHALMIA (AND BITOT'S SPOTS), CHILDREN UNDER AGE 6, DECEMBER-APRIL (NBS 1981) Estimated Number of Children Affected Prevalence per 100 Children Percentage of Nepal's Total Own Radio Sample N - (-) 1.0 (0.7) 0.9 (0.6) NA (NA) - (-) 100.0 (100.0) 100.0 (100.0) NA (NA) 0 (0) 20,858 (15,534) 20,858 (15,534) 6 (0) Yes No Subtotal Missing data 617 6,284 7,201 379 20,858 _(15,534) 0.9 (0.6) 100.0 (100.0) Total 7,580 Source: FR8.002 AN.145, 161 M Note: Figures in parentheses refer to the estimated number of cases, prevalence, and distribution of active xerophthalmia that are Bitot's spots. hills. Distance to water source is shown in Table 8-32, but the pat- tern is not clear. TABLE 8-31. PREVALENCE, ESTIMATED NUMBER OF CASES, AND DIS- TRIBUTION BY DRINKING WATER SOURCE, ACTIVE XEROPHTHALMIA (AND BITOT'S SPOTS), CHILDREN UNDER AGE 6, DECEMBER-APRIL (NBS 1981) Estimated Number of Children Affected Prevalence per 100 Children Percentage of Nepal's Total Sample N Source Tube well/tap Other well River/stream Pond/lake Other Subtotal Missing data 2,586 2,992 1,012 29 579 7,198 382 8,742 (6,646) 9,032 (6,428) 1,719 (1,405) 363 (363) 1,002 (692) 20,858 (15,534) 6 (0) 1.0 (0.7) 0.9 (0.6) 0.5 (0.4) 3.7 (3.0) 0.5 (0.4) 0.9 (0.6) NA (NA) 41.9 (42.8) 43.3 (41.4) 8.2 (9.0) 1.7 (2.3) 4.8 (4.5) 100.0 (100.0) NA (NA) Total 7,580 20,858 (15,534) 0.9 (0.6) 100.0 (100.0) Source: FRS.002 AN.128, 144 M Note: Figures in parentheses refer to the estimated number of cases, prevalence, and distribution of active xerophthalmia that are Bitot's spots.
