Investigation and evaluation on integrated control of pinworm infection in preschool children

Objective To ascertain the status quo of pinworm infection and its integrated control efficiency in the preschool children in Hangzhou, so as to provide the best scientific basis for next counter-measures.Methods Children of two different kindergartens (named A and B) were selected randomly and divided into two groups, with 220 children from kindergarten A in the experimental group and the other 131 children from kindergarten B in contrast group.Integrated control methods including health education, hygiene improvement, deworming, etc.were used in the experimental group, and simple deworming was used in the contrast group.The infection rate was observed before and after integrated or simple control.The protection rate (PR) and the index of effectiveness (IE) on the overall prevalence of pinworm infection rate in the two groups were compared separately and the control methods used in the two groups were evaluated.Results In experimental group, the total pinworm infection rate decreased from 3.64% (8/220) to 1.82% (4/220) with PR 50.00% and IE 2.00.In contrast group, the total pinworm infection rate decreased from 3.82% (5/131) to 3.05% (4/131) with PR 20.16% and IE 1.25.Conclusion Integrated controls are much more effective than simple deworming in the reduction of the infection rate of pinworm.