Background: Non-western (non-w) migrants in Europe are at increased risk of type 2 diabetes (T2D) but it is not known if this translates into increased risk of atherosclerotic cardiovascular disease (ASCVD). We calculated age- and sex-specific incidence rates (IR) of ASCVD following T2D among 1st generation migrants in Denmark compared with Danish-born citizens.
Methods: Data were obtained from nationwide registers. A total of 346,947 people diagnosed with T2D between 1997-2016 were followed for a median (IQR) of 6.7 (8.8) yr, and classified as Danish-born citizens, western- or non-w migrants according to country of birth. IR of first ASCVD event and death from other causes were estimated separately using Poisson regression with risk time as offset, adjusting for T2D duration and education.
Results: Non-w migrants (n=27,693) were younger at T2D diagnosis than Danish-born (mean [SD], 50.8 [11.8] vs. 61.6 [13.5] yr). In total, 104,286 persons (30.1%) developed ASCVD. In adjusted models, ASCVD rates were higher for non-w migrant women at 40-60 yr but lower for both genders at 60-80 yr, compared to western migrants and Danish-born (Figure 1A-B). Non-ASCVD related mortality was also lower among non-w migrants (Figure 1C).
Conclusion: Non-w migrants had lower risk of developing ASCVD at 60-80 yr and lower mortality from other causes. This may reflect a ’healthy migrant effect’ or differences in lifestyle or medication.
G.S. Andersen: Stock/Shareholder; Self; Novo Nordisk A/S. S. Byberg: None. A.D. Bjørkman: None. A.A. Isaksen: Research Support; Self; Novo Nordisk Foundation. H. Amadid: None. B. Carstensen: Stock/Shareholder; Self; Novo Nordisk A/S. M.E. Jørgensen: Research Support; Self; Amgen, AstraZeneca, Boehringer Ingelheim Pharmaceuticals, Inc., Sanofi-Aventis. Stock/Shareholder; Self; Novo Nordisk A/S.