Investigates determinants of contraceptive discontinuation in Egypt, Morocco, Tunisia, Indonesia, Thailand, & Ecuador, drawing on Demographic & Health Survey data. Cumulative probabilities of discontinuation at 24 months for reasons other than the desire for another child were examined. By this time, typically about 40% of couples have stopped use, & most are subsequently at risk of an unwanted conception. Prior use of a method, fertility preferences, & the related demographic factors of age & family size emerged as pervasive predictors of discontinuation. Discontinuation of intrauterine device use was found to be less common than for other methods, partly perhaps because cessation of use requires a deliberate decision to have the device removed. Neither the schooling of couples nor their type of residence exerted appreciable influence on discontinuation. Policy & program implications are discussed. 10 Tables, 11 References. Adapted from the source document.