The aim of the study was to identify factors associated with nonattendance in a Danish nationwide screening program for diabetic retinopathy among people with type 2 diabetes.

A retrospective observational study linking individual-level register data was performed. First, we compared characteristics of 156,878 people with type 2 diabetes divided into attenders and never-attenders on the basis of their screening history over a 6-year period. Second, we assessed 230,173 screening intervals within the same 6-year period. Mixed-effects models were used to investigate the effect of sociodemographic and health-related factors on the likelihood of having a nonattender interval (i.e., failing to attend screening within the recommended interval).

A total of 42,068 (26.8%) people were identified as never-attenders, having no registered eye screening over a 6-year period. Compared with attenders, never-attenders were more frequently divorced/widowed, lived in the Capital Region of Denmark, and had poorer health. A total of 62,381 (27.1%) screening intervals were identified as nonattender intervals. Both sociodemographic and health-related factors were significantly associated with the likelihood of having a nonattender interval. The largest odds ratios for nonattendance were seen for mental illness, nonwestern descent, divorce, comorbidity, and place of residence.

Our findings suggest that never- and nonattendance of screening for diabetic retinopathy are more common among people who are divorced/widowed and of poorer health. Additionally, nonattendance is more frequent among people of nonwestern decent. These population subgroups may benefit from targeted interventions aimed at increasing participation in diabetic retinopathy screening.

该研究的目的是确定与丹麦全国 2 型糖尿病患者糖尿病视网膜病变筛查项目不参加的相关因素。

进行了一项将个人水平登记数据联系起来的回顾性观察研究。首先，我们比较了 156,878 名 2 型糖尿病患者的特征，根据他们在 6 年期间的筛查历史分为参加者和从未参加者。其次，我们在同一 6 年内评估了 230,173 个筛查间隔。混合效应模型用于调查社会人口和健康相关因素对未参加间隔（即未能在推荐间隔内参加筛查）的可能性的影响。

共有 42,068 人（26.8%）被确定为从未参加过，在 6 年内没有进行过眼科检查。与参加者相比，从未参加者更频繁地离婚/丧偶，住在丹麦首都地区，健康状况较差。共有 62,381 (27.1%) 个筛查间隔被确定为未参加间隔。社会人口统计学和健康相关因素都与出现无人值守间隔的可能性显着相关。精神疾病、非西方血统、离婚、合并症和居住地的缺勤比值比最大。

我们的研究结果表明，在离婚/丧偶和健康状况较差的人群中，从不参加或不参加糖尿病视网膜病变筛查的情况更为普遍。此外，非西方体面的人更频繁地缺勤。这些人群亚组可能受益于旨在增加糖尿病视网膜病变筛查参与度的有针对性的干预措施。