Table 1.
Baseline characteristics of participants of European ancestry in the UK Biobanka
| Fish oil intake (n=134720) | No fish oil intake (n=289370) | P-value | |
|---|---|---|---|
|
| |||
| Age, years (SD) | 59 (7.3) | 56 (8.1) | <0.001 |
| Sex, female (%) | 75726 (56) | 153758 (53) | <0.001 |
| Body mass index, kg/m2 (SD) | 27 (4.5) | 28 (4.9) | <0.001 |
| Total cholesterol, mmol/L (SD) | 5.78 (1.16) | 5.68 (1.14) | <0.001 |
| LDL cholesterol, mmol/L (SD) | 3.61 (0.88) | 3.55 (0.87) | <0.001 |
| HDL cholesterol, mmol/L (SD) | 1.48 (0.39) | 1.44 (0.38) | <0.001 |
| Triglycerides, mmol/L (SD) | 1.75 (1.00) | 1.76 (1.04) | 0.036 |
| Smoking status (%) | <0.001 | ||
| Never | 71756 (53) | 157498 (54) | |
| Previous | 51940 (39) | 97930 (34) | |
| Current | 10527 (8) | 32968 (11) | |
| Alcohol status (%) | <0.001 | ||
| Never | 4075 (3) | 9220 (3) | |
| Previous | 4302 (3) | 10411 (4) | |
| Current | 126232 (94) | 269500 (93) | |
| Physical activity (%) | <0.001 | ||
| Low | 16930 (13) | 47061 (16) | |
| Moderate | 43674 (32) | 96758 (33) | |
| High | 48761 (36) | 90921 (31) | |
| Statin use, yes (%) | 24121 (18) | 45463 (16) | <0.001 |
a
Values are numbers (%) for categorical variables, and mean (SD) for continuous variables. P-values were obtained from the Chi-squared test (categorical variables) or the 2-sample t-test (continuous variables). LDL, low-density lipoprotein; HDL, high-density lipoprotein.