Table 2.
Characteristics of the study sample at enrollment by physical activity (PA) level among 80,202 postmenopausal women from the Norwegian Women and Cancer Study
| |
PA level |
||||
|---|---|---|---|---|---|
| Very low | Low | Moderate | High | Very high | |
| N |
4196 |
16 773 |
33 538 |
20 564 |
5131 |
| Age (years) |
49.1 |
48.8 |
48.3 |
48.1 |
47.5 |
| Duration of education (years) |
11.3 |
12.2 |
12.3 |
12.4 |
11.6 |
| Weight (kg) |
70.8 |
68.8 |
66.1 |
64.5 |
63.1 |
| Height (cm) |
165.7 |
166.2 |
166.2 |
166.4 |
166.0 |
| Body mass index (kg/m2) |
25.8 |
24.9 |
23.9 |
23.3 |
22.9 |
| Smoking status: |
|
|
|
|
|
| Never smoker |
29.5 |
34.8 |
36.2 |
35.9 |
33.1 |
| Former smoker |
29.6 |
31.0 |
32.6 |
34.6 |
32.5 |
| Current smoker |
41.0 |
34.2 |
31.3 |
29.5 |
34.2 |
| Pack-years (in former and current smokers) |
8.5 |
6.5 |
5.5 |
5.2 |
5.6 |
| Alcohol consumption (g/day) |
3.5 |
3.5 |
3.4 |
3.5 |
3.1 |
| Age at menarche |
13.2 |
13.3 |
13.3 |
13.3 |
13.4 |
| Oral contraceptive use (ever) |
46.2 |
45.0 |
45.2 |
44.7 |
46.5 |
| Age at first birth (years) |
23.4 |
23.9 |
23.9 |
23.9 |
23.5 |
| Nulliparous |
10.8 |
9.0 |
8.1 |
8.0 |
7.6 |
| Age at menopause (years) |
47.6 |
48.3 |
48.4 |
48.3 |
48.1 |
| Hormone replacement therapy use (current) |
27.9 |
29.0 |
27.6 |
28.1 |
24.5 |
| Self-reported cardiovascular disease (yes) |
9.1 |
5.4 |
3.9 |
3.8 |
4.4 |
| Self-reported diabetes (yes) | 3.0 | 1.7 | 1.3 | 1.1 | 1.2 |