title: Variation in the protection periods of repellents on individual human subjects: an analytical review.
abstract: Mosquito repellent test data from the literature were analyzed to estimate mean protection periods and among-subjects standard deviations. Standard deviations were a linear function of the means. Numbers of subjects needed to determine mean protection periods of 1-8 h with confidence limits of +/- 0.5, 1.0, 1.5, and 2.0 h at the 99 and 95% levels of confidence were computed from regression values of the standard deviation, and a table of sample sizes was constructed for use in planning repellent tests.
authors.affiliation: U.S. Army Medical Research & Materiel Command, ATTN: MCMR-MSI, Fort Detrick, MD 21702-5012, USA.
authors.forename: L C
authors.initials: LC
authors.lastname: Rutledge
authors.forename: R K
authors.initials: RK
authors.lastname: Gupta
mesh_terms: D000818:Animals; D009033:Culicidae; D006801:Humans; D007302:Insect Repellents; D009032:Mosquito Control / Q000379:methods
chemical_list: D007302:Insect Repellents