regression models for ordinal responses a review of methods

Episiotomy is an obstetric surgical procedure for the

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Unformatted text preview: the Score test for assessing the proportional odds and parallel slopes assumptions due to its extreme anti-conservatism. Hence, we used graphical methods to assess the validity of these assumptions. Although we have illustrated the general form of Anderson’s Stereotype logistic model, we did not fit this model to our data due to the lack of availability of statistical software. APPLICATION The data described in Table 3 were derived from the Nova Scotia Atlee perinatal database of the Reproductive Care Program of Nova Scotia, Canada. The ordinal response variable ‘degree of laceration’ refers to the wounds of the perineum as a consequence of performing an episiotomy. Episiotomy is an obstetric surgical procedure for the enlargement of the vaginal opening just prior to delivery.17 There are two commonly accepted techniques for episiotomy: midline and mediolateral procedures. The midline procedure is performed by making a midline perineal incision and directed toward the rectum. The mediolateral procedure is performed by making a perineal i...
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