Porto Thaisy Mendes, Machado Daniele Caferatti, Martins Rafael Olívio, Galato Dayani, Piovezan Anna Paula
Course of Pharmacy, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil.
Course of Medicine, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil.
Patient Prefer Adherence. 2014 Jul 16;8:991-5. doi: 10.2147/PPA.S62652. eCollection 2014.
Locus of pain control (LPC) is characterized by the behavior of people coping with their health problems, as a result of their own actions (internal control) or external factors or other people (external control). This parameter can be associated with medication adherence, in addition to other psychosocial factors that may also influence this behavior. This study was performed to investigate the influence of the LPC on medication adherence in patients undergoing an orthopedic procedure.
We conducted a prospective cohort study on patients who attended an orthopedic clinic for arthroscopy treatment. The patients' LPC and pain intensity data were obtained on the day of admission through the use of the LPC scale and the visual analog scale (VAS), respectively, both being validated tools. After arthroscopic surgery, the patients received drug prescriptions and were reassessed after 15 days regarding treatment adherence, using the Morisky test. A P-value <0.05 was considered statistically significant.
We assessed 79 individuals from both the internal LPC group (n=35) and external LPC group (n=44) and found that there were no group differences in sex, affected limb, cause of injury, repetitive strain injury, duration of pain, or pain intensity. However, there was a higher proportion of patients in the external LPC group that adhered to the prescribed medication compared with the internal LPC group (P<0.01).
The results showed that among patients who underwent an orthopedic procedure, there was a higher adherence rate to prescribed medication in the external LPC group compared with the internal LPC group.
疼痛控制源（LPC）的特征在于人们应对自身健康问题的行为，这是其自身行为（内部控制）或外部因素或其他人（外部控制）的结果。除了可能影响这种行为的其他社会心理因素外，该参数还可能与药物依从性相关。本研究旨在调查LPC对接受骨科手术患者药物依从性的影响。
我们对前往骨科诊所接受关节镜治疗的患者进行了一项前瞻性队列研究。分别通过使用LPC量表和视觉模拟量表（VAS）在入院当天获取患者的LPC和疼痛强度数据，这两种工具均经过验证。关节镜手术后，患者接受药物处方，并在15天后使用Morisky测试重新评估治疗依从性。P值<0.05被认为具有统计学意义。
我们评估了内部控制源组（n = 35）和外部控制源组（n = 44）的79名个体，发现两组在性别、受影响肢体、损伤原因、重复性劳损、疼痛持续时间或疼痛强度方面没有差异。然而，与内部控制源组相比，外部控制源组中坚持按处方用药的患者比例更高（P<0.01）。
结果表明，在接受骨科手术的患者中，外部控制源组对处方药物的依从率高于内部控制源组。
