Table 4

Number of strokes, person-years, incidence rates, rate differences and HRs for incident ischaemic stroke and intracerebral haemorrhage stratified by sex, age and time since diagnosis 2003–2013 in Sweden

General populationSLEAge and sex-adjusted rate difference (95% CI)Model 1
HR
(95% CI)
Model 2
HR
(95% CI)
Strokes/person-years, nIncidence rate*
(95% CI)
Strokes/person-years, nIncidence rate*
(95% CI)
Ischaemic stroke
Males79/12 8336.2 (4.9 to 7.7)22/23669.3 (6.1 to 14.1)2.9 (−1.1 to 7.0)1.5 (0.9 to 2.4)1.4 (0.9 to 2.2)
Females149/73 1112.0 (1.7 to 2.4)77/14 0215.5 (4.4 to 6.9)3.7 (2.4 to 5.0)2.8 (2.1 to 3.7)2.8 (2.1 to 3.7)
<50 years14/46 8630.3 (0.2 to 0.5)14/91891.5 (0.9 to 2.6)1.2 (0.4 to 2.1)5.1 (2.5 to 10.8)4.6 (2.1 to 9.9)
50 to <60 years36/16 0202.2 (1.6 to 3.1)14/30164.6 (2.7 to 7.8)2.4 (−0.2 to 4.9)2.1 (1.1 to 3.9)1.7 (0.9 to 3.1)
≥60 years178/23 0617.7 (6.7 to 8.9)71/418117.0 (13.5 to 21.4)9.2 (5.1 to 13.3)2.2 (1.7 to 2.9)2.1 (1.6 to 2.8)
0 to <1 years27/15 9201.7 (1.2 to 2.5)22/31736.9 (4.6 to 10.5)1.1 (0.5 to 1.7)3.9 (2.2 to 6.8)3.4 (1.9 to 6.1)
1 to <5 years125/46 7802.7 (2.2 to 3.2)49/89805.5 (4.1 to 7.2)1.7 (0.8 to 2.6)2.1 (1.5 to 2.9)2.0 (1.4 to 2.8)
5–11 years76/23 2443.3 (2.6 to 4.1)28/42326.6 (4.6 to 9.6)1.4 (0.4 to 2.3)2.3 (1.5 to 3.6)2.2 (1.4 to 3.4)
Intracerebral haemorrhage
Males9/12 8330.7 (0.4 to 1.3)NANANANANA
Females28/73 1110.4 (0.3 to 0.6)10/14 0200.7 (0.3 to 1.3)0.4 (−0.1 to 0.8)2.0 (1.0 to 4.0)1.8 (0.9 to 3.7)
<60 years8/62 8830.1 (0.1 to 0.3)5/12 2040.4 (0.2 to 1.0)0.3 (−0.1 to 0.7)3.3 (1.1 to 10.0)3.2 (1.1 to 9.9)
≥60 years29/23 0611.3 (0.9 to 1.8)6/41811.4 (0.6 to 3.2)0.2 (−1.1 to 1.4)1.2 (0.5 to 2.8)1.0 (0.4 to 2.4)
<5 years24/62 7000.4 (0.3 to 0.6)6/12 1540.5 (0.2 to 1.1)0.1 (−0.2 to 0.4)1.3 (0.5 to 3.2)1.1 (0.5 to 2.8)
5–11 years13/23 2440.6 (0.3 to 1.0)5/42321.2 (0.5 to 2.8)0.2 (−0.2 to 0.6)2.3 (0.8 to 6.3)2.2 (0.8 to 6.2)
  • NA marks cell counts <5, corresponding incidence rates and HRs were therefore not estimated.

  • Incidence rates per 1000 person-years. CIs calculated using the Poisson distribution.

  • Model 1 Cox regression model adjusted for age and sex. Model 2 adjusted for age, sex, education, history of hypertension, diabetes, congestive heart disease diagnoses and atrial fibrillation.