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Table 3 The Homogeneity of the Association Between Risk Factors and Ischaemic Stroke by Ethnicity

From: Additive interaction between potentially modifiable risk factors and ethnicity among individuals in the Han, Tujia and Miao populations with first-ever ischaemic stroke

Risk factor Tujia Miao Han P1 P2 P3
Case
(N = 178)
Control
(N = 188)
Crude OR
(95%CI)
Case
(N = 95)
Control
(N = 137)
Crude OR
(95%CI)
Case
(N = 51)
Control
(N = 69)
Crude OR
(95%CI)
Manual Worker 144 158 0.80 (0.47–1.38) 76 127 0.32 (0.14–0.71) 37 57 0.56 (0.23–1.34) 0.482 0.351 0.058
Education ≥9 years 53 51 1.14 (0.72–1.79) 27 21 2.19 (1.15–4.18) 18 14 2.14 (0.94–4.87) 0.185 0.965 0.102
Given birth to 3 or more children 98 77 1.77 (1.17–2.67) 48 65 1.13 (0.67–1.91) 14 21 0.87 (0.39–1.93) 0.119 0.582 0.191
Monthly family income≥¥5000 80 39 3.12 (1.97–4.94) 42 14 6.96 (3.51–13.82) 26 18 2.95 (1.37–6.35) 0.901 0.101 0.055
Current smoking 84 61 1.86 (1.22–2.84) 48 61 1.27 (0.75–2.15) 23 33 0.90 (0.43–1.85) 0.088 0.443 0.269
Eating fast food frequency ≥ once per week 20 5 4.63 (1.70–12.63) 15 9 2.67 (1.12–6.38) 6 2 4.47 (0.86–23.13) 0.970 0.585 0.412
Eating hot Pot frequency ≥ once per week 24 16 1.68 (0.86–3.27) 12 6 3.16 (1.14–8.74) 4 2 2.85 (0.50–16.21) 0.573 0.921 0.306
MIPA 133 158 0.56 (0.34–0.94) 61 105 0.55 (0.31–0.97) 34 55 0.51 (0.22–1.16) 0.845 0.890 0.948
Hypertension 149 110 3.64 (2.23–5.96) 77 81 2.96 (1.60–5.48) 42 35 4.53 (1.92–10.72) 0.666 0.428 0.604
Diabetes mellitus 84 33 4.18 (2.60–6.77) 42 21 4.38 (2.36–8.11) 22 9 5.06 (2.07–12.36) 0.718 0.794 0.916
Hyperlipidemia 86 62 1.90 (1.25–2.90) 44 43 1.89 (1.10–3.24) 22 30 0.99 (0.48–2.05) 0.127 0.162 0.983
WHR (female:> 0.8, male:> 1.0) 87 82 1.24 (0.82–1.87) 41 43 1.66 (0.96–2.86) 22 19 2.00 (0.93–4.29) 0.279 0.700 0.396
HDL-C < 1.0 mmol/L 50 32 1.90 (1.15–3.14) 23 13 3.05 (1.46–6.38) 13 10 2.02 (0.81–5.06) 0.913 0.166 0.302
Apo B/Apo A1 > 0.9 79 17 8.03 (4.50–14.33) 35 22 3.05 (1.64–5.66) 19 8 4.53 (1.79–11.48) 0.304 0.487 0.024
Hs-CRP ≥ 5.0 mg/L 159 26 52.14 (27.75–97.97) 75 11 42.96 (19.51–94.58) 43 3 118.25 (29.71–470.68) 0.287 0.208 0.707
  1. P1 value for Tujia vs Han, P2 value for Miao vs Han, P3 value for Tujia vs Miao