VILLAGE AND HOUSEHOLD CLUSTERING OF XEROPHTHALMIA AND TRACHOMA
VILLAGE AND HOUSEHOLD CLUSTERING OF XEROPHTHALMIA AND TRACHOMA
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DOI:
10.1093/ije/17.4.865
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发表时间:
1988-12-01
影响因子:
7.7
通讯作者:
TIELSCH, JM
中科院分区:
文献类型:
--
作者:
KATZ, J;ZEGER, SL;TIELSCH, JM
The clustering of xerophthalmia in villages and in households was assessed among preschool children surveyed in the Lower Shire Valley, Malawi, and in Aceh province, Indonesia. Trachoma clustering was similarly assessed among the same children in Malawi. Trachoma clustered much more than xerophthalmia among villages and among households. The impact of xerophthalmia clustering on sample size considerations for future surveys or interventions was similar in Malawi and indonesia. Village clustering of xerophthalmia would necessitate a twofold increase in sample size. Househould clustering in the absence of villge clustering would have almost no impact on sample size. Village clustering of trachoma would necessitate a ninefold increase in sample size. Household clustering would increase sample size requirements by 26%.