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Conclusions The risk factors that might be associated with longer pain duration include older age and abnormal BMI. Copyright © 2020, Author(s).Background Spinal anesthesia is the most common technique used for cesarean delivery due to some advantages compared to regional anesthesia. It is easily performed and provides a rapid onset of block. Though bupivacaine is a generally used long-acting amide type local anesthetic drug for spinal anesthesia, ropivacaine may sometimes be selected. Objectives This prospective, randomized, double-bl