| 1 | A | B | C |
| --- | --- | --- | --- |
| 2 | regression model estimates (beta, p-values) of association between selected characteristics and omega-3 index levels, household population aged 20 to 79, canada excluding territories, 2012/2013 |  |  |
| 3 | characteristic | control model |  |
| 4 |  | beta | p-value |
| 5 | r2 | 0.422 |  |
| 6 | sex |  |  |
| 7 | men | -0.142 | 0.119 |
| 8 | women | .. | .. |
| 9 | age group |  |  |
| 10 | 20 to 39 | -0.608 | 0.001 |
| 11 | 40 to 59 | -0.497 | 0.011 |
| 12 | 60 to 79 | .. | .. |
| 13 | race |  |  |
| 14 | white | .. | .. |
| 15 | asian | 1.576 | 0.001 |
| 16 | other | 0.760 | 0.007 |
| 17 | supplement use |  |  |
| 18 | no | .. | .. |
| 19 | yes | 1.719 | 0.000 |
| 20 | fish consumption |  |  |
| 21 | less than twice a week | .. | .. |
| 22 | at least twice a week | 0.690 | 0.001 |
| 23 | smoking status |  |  |
| 24 | daily or occasional | -0.564 | 0.000 |
| 25 | non-smoker | .. | .. |
| 26 | obesity |  |  |
| 27 | no | .. | .. |
| 28 | yes | -0.269 | 0.027 |

Question: what was the percent of inclusion of sex, age, race, supplement use, fish consumption, smoking status, and obesity in the model of the variability in omega-3 index levels?
Answer: 0.422