Table 1.
Descriptive statistics of variables (adjusted for missing observations)
| Variables | Observations | Mean(SD) /% |
|---|---|---|
| Dependent variable (HRQoL) |
|
|
| EQ-5D |
5453 |
0.86 (0.23) |
| Missing |
84 |
1.5 |
| Independent variables (PA) |
|
|
| Walking |
|
|
|
Active |
873 |
15.8 |
|
Inactive |
4664 |
84.2 |
| Sports and exercise |
|
|
|
Active |
660 |
11.9 |
|
Inactive |
4877 |
88.1 |
| Objective measurement* |
|
|
|
Active |
102 |
11.5 |
|
Inactive |
783 |
88.5 |
|
Missing |
4652 |
84 |
| Subjective measurement** |
|
|
|
Active |
2452 |
44.4 |
|
Inactive |
3067 |
55.6 |
|
Missing |
18 |
0.3 |
| Independent variables (covariates) |
|
|
| Age |
5537 |
50(6.2) |
| Gender |
|
|
|
Male |
2519 |
45.5 |
|
Female |
3018 |
54.5 |
| Marital status |
|
|
|
Other |
30 |
0.5 |
|
Married (living with partner) |
3618 |
65.3 |
|
Single |
735 |
13.3 |
|
Separated |
208 |
3.8 |
|
Divorced |
816 |
14.7 |
|
Widowed |
135 |
2.4 |
| Income |
4535 |
35591.2 (29210) |
|
Missing |
1002 |
18.1 |
|
Income (missing observations imputed for) |
5537 |
35008.3 (26987.7) |
| Drink alcohol |
|
|
|
Yes |
4702 |
84.9 |
|
No |
823 |
14.9 |
|
Missing |
12 |
0.2 |
| Smokers |
|
|
|
Yes |
1206 |
21.8 |
|
No |
1926 |
34.8 |
|
Missing |
2405 |
43.4 |
| BMI |
|
|
|
Underweight (under 18.5) |
30 |
0.5 |
|
Normal (18.5 – 25) |
1487 |
26.9 |
|
Overweight (25 – 30) |
1885 |
34 |
|
Obese (30+) |
1418 |
25.6 |
|
Missing |
717 |
13 |
| Ethnicity |
|
|
|
White |
5029 |
90.8 |
|
Mixed |
44 |
0.8 |
|
Asian |
260 |
4.7 |
|
Black |
140 |
2.5 |
|
Chinese |
28 |
0.5 |
|
Other |
17 |
0.3 |
|
Missing |
19 |
0.3 |
| Education |
|
|
|
Nvq4/nvq5/degree or equivalent |
1228 |
22.2 |
|
Higher education below degree |
746 |
13.5 |
|
Nvq3/GCE ‘A’ level equivalent |
749 |
13.5 |
|
Nvq2/GCE ‘O’ level equivalent |
1404 |
25.4 |
|
Nvq1/CSE other grade equivalent |
239 |
4.5 |
|
Foreign/other |
53 |
1.0 |
|
No qualification |
1102 |
19.9 |
|
Missing |
16 |
0.3 |
| Employment status |
|
|
|
Employed |
4215 |
76.1 |
|
Unemployed |
163 |
2.9 |
|
Retired |
259 |
4.7 |
|
Other economically inactive |
884 |
16 |
| Missing | 16 | 0.3 |
*The distribution of objective measurement (missing observations imputed for) is: active (111;2%) inactive(5426;98%) ** The distribution of subjective measurement (missing observations imputed for) is: active (2465; 44.5%) inactive (3072; 55.5%). If restricted to observations with values for objective measurement, the distribution of subjective measurement (missing observations imputed for) is: active (408; 46.1%) inactive (477; 53.9%).