Purpose: To estimate the influence of clinical and demographical information in the understanding of cataract surgery informed consent, identifying less understandable areas. To assess informed consent document concept. Methods: Multiple-choice questionnaire was designed to collect information and to evaluate the understanding of cataract surgery and informed consent. An ordinary regression model was adjusted to express the effect of clinical and demographic variables to the questionnaire score. Results: The study comprised 180 patients. Sex (female, p=0.404), non-ophthalmologist source of information (p=0.397), previous surgical history (p=0.571), not having a companion (p=0.396) nor the days since the signing of informed consent form (p=0.535) had no influence in the understanding of cataract surgery informed consent. Age (r=-0.083, p<0.001) and educational level (secondary studies r=1.845, p<0.001; tertiary studies r=4.289, p<0.001) showed statistical significance with greater strength of association educational level (OR secondary studies = 6.33, OR tertiary studies = 72.86) than age had (OR = 0.92). Conclusion: Patient’s knowledge about cataract informed consent is influenced by age and educational level. The purpose and the risks, consequences of not performing surgery and postoperative indications are the least understood topics. Informed consent is seen as a forced legal obligation.

中文翻译：

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临床和人口学因素对白内障知情同意理解的影响分析

目的：评估临床和人口统计信息对理解白内障手术知情同意的影响，确定难以理解的领域。评估知情同意文件的概念。方法：多项选择问卷旨在收集信息并评估对白内障手术和知情同意的理解。调整普通回归模型以表达临床和人口统计变量对问卷评分的影响。结果：该研究包括 180 名患者。性别（女性，p=0.404）、非眼科医生信息来源（p=0.397）、既往手术史（p=0.571）、没有同伴（p=0.396）以及签署知情同意书后的天数（ p=0.535）对白内障手术知情同意的理解没有影响。年龄（r=-0.083，p<0。001）和教育水平（中学研究 r=1.845，p<0.001；高等教育研究 r=4.289，p<0.001）显示出与教育水平（或中学研究 = 6.33，或高等教育研究 = 72.86）更大的关联强度的统计显着性年龄有（OR = 0.92）。结论：患者对白内障知情同意的了解受年龄和文化程度的影响。不进行手术的目的和风险、后果以及术后适应症是人们最不了解的话题。知情同意被视为强制的法律义务。患者对白内障知情同意的了解受年龄和教育水平的影响。不进行手术的目的和风险、后果以及术后适应症是人们最不了解的话题。知情同意被视为强制的法律义务。患者对白内障知情同意的了解受年龄和教育水平的影响。不进行手术的目的和风险、后果以及术后适应症是人们最不了解的话题。知情同意被视为强制的法律义务。