CHAPTER EIGHT 356 TABLE 8-33. PREVALENCE, ESTIMATED NUMBER OF CASES, AND DISTRIBUTION BY MEASURES OF HOUSEHOLD CLEANLINESS, 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 Cleanliness Measures Sample N House clean inside? Yes No Subtotal Missing data Total 4,091 2,397 6,488 1,692 7,580 10,279 (7,910) 9,211 (6,929) 19,490 (14,839) 1,368 (695) 20,858 (15,534) 0.7 (0.6) 1.1 (0.6) 0.9 (0.6) NA (NA) 0.9 (0.6) 52.7 (53.3) 47.3 (46.7) 100.0 (100.0) NA (NA) 100.0 (100.0) Source: AN.103, 119 M House clean outside? Yes No Subtotal Missing data Total 3,061 4,111 7,172 468 7,580 5,523 (4,200) 15,335 (11,334) 20,858 (15,534) 0 (0) 2.0,858 (15,534) 0.5 (0.4 1.1 (0.8) 0.9 (0.6) NA (NA) 0.9 (0.6) 26.5 (27.0) 73.5 (73.0) 100.0 (100.0) NA (NA) 100.0 (100.0) Source: AN.??, 106 M Fecal matter visible around outside of house? Yes No Subtotal Missing data Total 1,643 5,518 7,161 419 7,580 5,193 (3,828) 15,665 (11.706) 20,858 (15,534) 6 (0) 20,858 (15,534) 0.9 (0.6) 0.8 (0.6) 0.9 (90.6) NA (NA) 0.9 (0.6) 24.9 (24.6) 75.1 (75.4) 100.0 (100.0) NA (NA) 100.0 (100.0) Source: AN.??, 107 M Source: FR8.002 AN.103, 106, 107, 119 M Note: Figures in parentheses refer to the estimated number of cases, preva- lence, and distribution of cases of active xerophthalmia that are Bitot's spots. the xerophthalmia stage of the case, but it was not possible to mask the interviewer to the case or control status of the child.40 This shortcoming could not be avoided due to the small size of the teams that visited each survey site. Information was collected on anthropometric measurement, his- tory of previous or concurrent illness, and diet history. Because the survey extended over four months, there was concern that the seasonal availability of food would be a factor; however, cases and
