Table 2.

Association between ethnicity (white European v. South Asian) and plasma vitamin C

(Regression coefficients and 95 % confidence intervals)

Model	Regression coefficient*	95 % CI	P
Unadjusted	–1·78	–2·74, –0·83	<0·0001
1†	–1·91	–2·88, –0·94	<0·0001
2‡	–1·89	–2·95, –0·84	<0·0001
3§	–1·73	–3·23, –0·26	0·02

*Regression coefficient showing the difference in plasma vitamin C between ethnic groups (white European being the reference group).

†Model 1: adjusted for age, sex and BMI.

‡Model 2: model 1 plus use of vitamins, smoking status and deprivation score.

§Model 3: model 2 plus 2-h glucose, blood pressure, total cholesterol, HDL, TAG, family history of type 2 diabetes mellitus, activity and urinary F₂-isoprostanes.