title: Contraception continuation rates and reasons for discontinuation in Zahedan, Islamic Republic of Iran.
abstract: We evaluated contraception continuation rates and discontinuation reasons in Zahedan among 1741 women from 1998-2000. By Kaplan-Meier technique continuation rates were 92% for low dose combined hormonal oral contraceptives (OC), 86% for a levonorgestrel-releasing implant, 82% for intrauterine devices (IUD) and 53% for medroxyprogesterone acetate at the first year. After 3 years, continuation was 78% for levonorgestrel implant, 70% for OC, 60% for IUD and 44% for medroxyprogesterone acetate. The commonest reason for discontinuing OC and medroxyprogesterone acetate was changing method; for IUD and levonorgestrel-releasing implant, the commonest reason was side-effects. By Cox regression model, continuation rate and contraceptive type were significantly related to health centre.
authors.affiliation: Department of Public Health, Faculty of Health, Zahedan Medical Sciences University, Zahedan, Islamic Republic of Iran.
authors.forename: F
authors.initials: F
authors.lastname: Rakhshani
authors.forename: M
authors.initials: M
authors.lastname: Mohammadi
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001294:Attitude to Health; D016009:Chi-Square Distribution; D015331:Cohort Studies; D003267:Contraception / Q000009:adverse effects / Q000379:methods / Q000523:psychology* / Q000639:trends; D003268:Contraception Behavior / Q000523:psychology* / Q000639:trends; D003277:Contraceptives, Oral, Combined / Q000009:adverse effects; D003280:Contraceptives, Oral, Synthetic / Q000009:adverse effects; D004522:Educational Status; D005260:Female; D019538:Health Care Surveys; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D007492:Iran; D016912:Levonorgestrel / Q000009:adverse effects; D017258:Medroxyprogesterone Acetate / Q000009:adverse effects; D009042:Motivation; D016016:Proportional Hazards Models; D019984:Quality Indicators, Health Care; D016019:Survival Analysis; D013997:Time Factors; D014504:Urban Health / Q000706:statistics & numerical data; D014930:Women / Q000193:education / Q000523:psychology*
chemical_list: D003277:Contraceptives, Oral, Combined; D003280:Contraceptives, Oral, Synthetic; D016912:Levonorgestrel; D017258:Medroxyprogesterone Acetate