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. 2022 Oct 23;19(21):13770.
doi: 10.3390/ijerph192113770.

Association between Statin Use and Diabetes Risk in Patients with Transient Ischemic Attack

Fu-Jun Chen  1   2 , Ming-Chien Yin  3 , Pei-Yun Chen  1   4 , Min-Hua Lin  5   6 , Yi-Hao Peng  7   8 , Wen-Chao Ho  1 , Pau-Chung Chen  9   10 , Chung Y Hsu  11
Affiliations

Association between Statin Use and Diabetes Risk in Patients with Transient Ischemic Attack

Fu-Jun Chen et al. Int J Environ Res Public Health. .

Abstract

Statin therapy can effectively reduce recurrent transient ischemic attack (TIA) risk. However, studies have reported that statin use is associated with incidence of diabetes mellitus (DM). Whether statin therapy remains associated with higher DM risk in patients with TIA remains unknown. This study investigated whether statin treatment influences incident DM risk in patients with TIA. We conducted a retrospective cohort study using the Longitudinal Health Insurance Database 2000. Participants who were newly diagnosed with TIA (ICD-9-CM code 435) from 1 January 1997 to 31 December 2011 were recruited. The Kaplan-Meier method and Cox proportional risk model of time-dependent covariance were used. We enrolled 8342 patients with newly diagnosed TIA from 1 January 1997 to 31 December 2011. Of these, 1255 patients were classified as statin users and 7087 as nonusers. During the 14-year follow-up, the incidence of newly diagnosed DM was 0.545-fold lower in the statins group compared with nonusers (95% confidence interval [CI] = 0.457-0.650). According to cumulative defined daily doses (cDDDs), the adjusted hazard ratios for DM were 0.689, 0.594, and 0.463 when patients were treated with statins at cDDDs = 28-89, 90-180, and >180, respectively. In patients with TIA, statin use is associated with a lower incident DM risk compared with the nonuse of statins.

Keywords: cohort study; diabetes mellitus; statins; transient ischemic attack.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Flow chart for the enrollment of participants in the study.
Figure 2
Figure 2
Cumulative incidence of diabetes mellitus by statin use among TIA patients in Taiwan during follow-up time.
See this image and copyright information in PMC

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