Table 3 Results of dietary questionnaire

Alcohol (units/day)

0.7(1.7)

0.4(1.2)

0.957

Bread (slices/day)

3.2(2.0)

3.0(2.0)

0.757

Cereals (bowls/day)

0.6(0.7)

0.6(0.5)

0.528

Ceylon tea (cups/day)

1(2.1)

1.0(1.3)

0.921

Cheese (helping/week)

4.9(9.3)

0.4(0.6)

0.026

Chocolate (bars/week)

1.9(2.7)

0.5(0.7)

0.016

Coffee (cups/day)

1.8(2.4)

2(1.5)

0.73

Cream (helpings/week)

0.1(0.3)

0.04(0.2)

0.575

Fruit (pieces/week)

4.9(6.9)

1.5(1.1)

0.025

Liver/kidney (helping/week)

0.6(1.4)

0.1(0.2)

0.129

Nuts (grams/day)

10.4(29.3)

7.9(17.4)

0.728

Peas/beans(helpings/day)

0.9(1.9)

0.7(0.5)

0.627

Potato (helping/week)

4.6(4.9)

1.0(0.9)

0.001

Rooibos tea (cups/day)

0.7(1.0)

0.4(0.9)

0.317

Smoking (cigarettes/day)

5.2(7.3)

2.6(4.8)

0.550