Age40 Years+
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study PopulationParticipating sites will be encouraged to propose the study to all patients meeting the eligibility criteria, in a consecutive manner, when they come for consultation, in order to minimize bias in patient selection.Each investigator site will include the samenumber of patients initiating PT and initiating AB.Treatment choice should be made by the investigator as routine practice. No medical therapy is required for this study.Investigators should ensure that IPSS total score meets the eligibility criteria before enrolling patients in the study.