Table 1. Characteristics of participants at baseline in the Alberta Physical Activity and Breast Cancer Prevention Trial, n=320.
| Characteristic | Exercisers (n=160) | Controls (n=160) |
|---|---|---|
| Age (years) | 61.2 (5.4) | 60.6 (5.7) |
| No (%) of participants | ||
| Employed full time | 82 (55) | 79 (51) |
| Educated beyond high school | 112 (70) | 102 (64) |
| Married or in common-law relationship | 113 (71) | 125 (78) |
| White/Caucasian | 144 (91) | 145 (91) |
| Total energy intake (kcal per d) | 1551 (599) | 1527 (535) |
| Past year total physical activity (MET-hours per week) | 114.2 (57.6) | 129.1 (77.9) |
| Maximal oxygen consumption (ml kg−1 min−1) | 27.1 (6.2) | 26.8 (6.0) |
| Adiposity | ||
| Weight (kg) | 75.6 (13.0) | 76.3 (12.7) |
| Body mass index (kg m−2) | 29.1 (4.5) | 29.2 (4.3) |
| Waist circumference (cm) | 88.8 (10.6) | 88.8 (10.5) |
| Hip circumference (cm) | 109.3 (9.8) | 110.6 (10.1) |
| DXA: total body fat (kg) | 30.9 (8.2) | 31.3 (8.6) |
| DXA: percent body fat | 42.2 (4.9) | 42.4 (5.7) |
| CT: abdominal cross sectional area (cm2) | 723.8 (164.1) | 732.8 (170.0) |
| CT: abdominal fat area (cm2) | 425.8 (154.5) | 439.2 (162.2) |
| CT: intra-abdominal fat area (cm2) | 101.4 (55.4) | 103.2 (56.0) |
| CT: abdominal subcutaneous fat area (cm2) | 324.4 (116.0) | 336.0 (123.5) |
Abbreviations: CT, computed tomography; DXA, dual X-ray absorptiometry.
Note: Values are means (s.d.) unless stated otherwise.