Hand hygiene intervention to optimise helminth infection control: baseline data for Mikono Safi - A school-based cluster-randomised controlled trial in NW Tanzania

These data were collected during a cross-sectional survey conducted in primary schools in north western Tanzania at the beginning of a 12 month intervention period. The intervention was implemented using a cluster randomised trial design with schools as the units of randomisation. A random sample of children was selected in each participating class (class 1 to 6; approximately 35 children per class) in each school (n = 16 schools) to provide baseline data. The purpose of the trial was to examine whether whether a hand hygiene intervention implemented in schools could sustain the effects of deworming on the prevalence of soil transmitted worm infection (Ascaris lumbricoides and Trichuris trichiura) in school children. The survey data contained in these datasets were obtained after a deworming campaign conducted prior to intervention.

The data contains information on the characteristics of children included in the baseline survey including: sociodemographic information; deworming history; handwashing behaviour; food handling at home and availability of latrine facilities at home; and personal risk factors associated with soil transmitted worm infection. The dataset also contains laboratory data from stool samples of egg counts for specific worm species and binary variables derived from the egg count variables to determine the prevalence of infection.

本数据集收录了在坦桑尼亚西北部小学进行的一项横断面调查期间收集的数据。该调查在为期12个月的干预期初进行。干预措施采用以学校为随机化单元的集群随机试验设计。在每个参与学校中（共16所学校），随机选取了每个年级（1至6年级；每班约35名学生）的学生作为样本，以提供基线数据。试验的目的是检验在学校实施的洗手干预措施是否能够维持驱虫对儿童土壤传播性蠕虫感染（钩虫和毛首线虫）流行率的影响。这些数据集中的调查数据是在干预前的驱虫活动后收集的。

数据包含基线调查中包括的儿童特征信息，包括：社会经济人口信息；驱虫史；洗手行为；家庭中的食品处理和家用厕所设施的可获得性；以及与土壤传播性蠕虫感染相关的个人风险因素。数据集还包含粪便样本的实验室数据，包括特定蠕虫种类的虫卵计数以及由虫卵计数变量派生的二元变量，用于确定感染率。