Despite the lack of studies determining the benefits and harms of UI screening, the Women's Preventive Services Initiative (WPSI) recommended that doctors screen women of all ages, including adolescents, for UI yearly by using a questionnaire. The WPSI recommended referring women with UI for further evaluation if it affects their activities and QOL. These recommendations were based on indirect evidence that UI is common, treatment may be effective, and the harms of screening are unlikely to be serious. The recommendations might change if studies directly evaluating the benefits and harms of screening for UI become available. There are no data to support that the correct frequency of screening is yearly (no authors listed, 2018).