| 1 | A | B | C | D | E | F | G | H | I | J | K | L | M |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | observed prevalence for chronic conditions in regular force veterans, by era |  |  |  |  |  |  |  |  |  |  |  |  |
| 3 |  | veterans released between 1954 and 2003 |  |  | canadian comparator, 2003 |  |  | veterans released between 1998 and 2012 |  |  | canadian comparator, 2012 |  |  |
| 4 |  | % | 95% confidence interval |  | % | 95% confidence interval |  | % | 95% confidence interval |  | % | 95% confidence interval |  |
| 5 |  |  | from | to |  | from | to |  | from | to |  | from | to |
| 6 | back problems | 26.3 | 22.9 | 30.1 | 21.5 | 20.9 | 22.0 | 34.5 | 32.4 | 36.7 | 18.8 | 18.3 | 19.3 |
| 7 | arthritis | 21.5 | 19.0 | 24.2 | 18.7 | 18.1 | 19.2 | 22.4 | 20.7 | 24.3 | 10.8 | 10.4 | 11.2 |
| 8 | depression | 5.8 | 4.5 | 7.5 | 4.4 | 4.1 | 4.7 | 17.1 | 15.4 | 19.0 | 6.3 | 6.0 | 6.6 |
| 9 | anxiety | f | 2.1 | 4.2 | 3.0 | 2.8 | 3.2 | 11.1 | 9.7 | 12.7 | 5.6 | 5.3 | 5.9 |
| 10 | high blood pressure | 18.3 | 16.2 | 20.6 | 19.2 | 18.7 | 19.7 | 17.2 | 15.8 | 19.0 | 14.7 | 14.3 | 15.1 |
| 11 | heart disease | 8.5 | 7.1 | 10.2 | 7.5 | 7.1 | 7.9 | 3.3 | 2.7 | 4.1 | 3.5 | 3.2 | 3.8 |
| 12 | cancer | f | 1.9 | 3.9 | 2.3 | 2.1 | 2.5 | f | 1.2 | 2.2 | 1.3 | 1.1 | 1.5 |

Question: which had a higher prevalence of back problems,veterans of both eras or comparable canadians?
Answer: veterans released between 1954 and 2003, veterans released between 1998 and 2012