Table 2

Incidence rates* and sex-specific incidence rates* of myocardial infarction (MI) in patients with biopsy-confirmed giant cell arteritis (GCA), in Skåne, Sweden

AllMenWomen
Time period MI PY IR (95% CI) MI PY IR (95% CI) MI PY IR (95% CI)
First month post-GCA diagnosis
0–1 month592.454.1 (6.7 to 101.5)126.1738.2 (0 to 113.1)466.2760.4 (1.2 to 119.5)
First year post-GCA diagnosis
0–3 months13274.447.4 (21.6 to 73.1)577.464.6 (8 to 121.2)8197.140.6 (12.5 to 68.7)
4–6 months2268.287.5 (0 to 17.8)075.402192.910.4 (0 to 24.7)
7–9 months3263.811.4 (0 to 24.2)173.913.5 (0 to 40.1)2189.910.5 (0 to 25.1)
10–12 months3274.710.9 (0 to 23.3)277.225.9 (0 to 61.8)1197.55.1 (0 to 15)
0–12 months211081.219.4 (11.1 to 27.7)8303.926.3 (8.1 to 44.6)13777.416.7 (7.6 to 25.8)
Year 2 to end of follow-up
13–24 months101004.110 (3.8 to 16.1)5277.618 (2.2 to 33.8)5726.56.9 (0.8 to 12.9)
Years 3–5342428.814 (9.3 to 18.7)11606.818.1 (7.4 to 28.8)23182212.6 (7.5 to 17.8)
Years 6–1025236110.6 (6.4 to 14.7)7553.912.6 (3.3 to 22)181807.210 (5.4 to 14.6)
Years 11 to end of follow-up121082.511.1 (4.8 to 17.4)3278.910.8 (0 to 22.9)9803.611.2 (3.9 to 18.5)
Entire follow-up period
Entire follow-up1027957.512.8 (10.3 to 15.3)34202116.8 (11.2 to 22.5)685936.511.5 (8.7 to 14.2)
  • *Per 1000 PY.

  • IR, incidence rate; PY, person-years.