Table 3 Odds ratios (ORs) (95% confidence interval) for stroke according to the quartiles of serum total antioxidant capacity (TAC) and malondialdehyde (MDA)

Serum TAC^¥ (μmol/L)

2939.00

2453.00

4102.00

4916.50

No. cases/ controls

72/ 32

40/59

44/62

60/35

Model ¹

1

0.29 (0.09–0.94)

0.34 (0.11–1.10)

0.66 (0.21–2.11)

0.12

Model ²

1

0.37 (0.10–1.25)

0.32 (0.09–1.96)

0.75 (0.23–2.48)

0.14

 Variable

1st quartile

2nd quartile

3rd quartile

4th quartile

P-trend^$

 Serum MDA^¥ (μmol/L)

1.44

1.91

2.06

2.29

 No. cases/ controls

16/ 60

48/ 72

72/ 32

80/ 24

 Model ¹

1

2.50 (0.66–9.38)

8.43 (2.11–33.60)

12.50 (2.98–52.30)

0.00

 Model ²

1

2.12 (0.54–8.31)

7.98 (1.94–32.80)

11.97 (2.74–52.35)

0.00