Methodological quality of WHO medical eligibility criteria for contraceptive use.

The use of consensus recommendations and clinical guidelines is now widespread in industrialized countries and is becoming more common in developing countries. As guidance documents have become more influential, their methodological rigor has come under closer scrutiny. Using two independently developed scales, we assessed the methodological quality of an important set of guidelines developed by the World Health Organization (WHO). The consensus recommendation document called Improving Access to Quality Care in Family Planning: Medical Eligibility Criteria for Contraceptive Use has become the basis for national guidelines in dozens of countries. We compared the quality of the WHO guidelines to that of over 300 previously assessed, published guidelines. In most categories of quality, the WHO document exceeded the mean scores for other published guidelines. We discuss these comparisons, as well as the strengths and weaknesses of the WHO guidelines.