Table 2.
The average value and trend over time of a few selected exposures, stratified by good or poor perceived health status at round 6.
| Exposure | Total population (n = 3419) | Good perceived health (n = 2876) | Poor perceived health (n = 543) | p-value | |||
|---|---|---|---|---|---|---|---|
| Mean/% | SD/n | Mean/% | SD/n | Mean/% | SD/n | ||
| Demographic exposures | |||||||
| Working hours (in hours per week), AUE | 20.9 | 15.9 | 22.1 | 15.6 | 14.9 | 16.3 | < 0.001 |
| Working hours (in hours per week), TOE | − 1.2 | 7.5 | − 1.1 | 7.6 | − 1.8 | 7.0 | 0.040 |
| Marital status (% of the time married), AUE | 81 | 32 | 82 | 31 | 76 | 37 | < 0.001 |
| Marital status (% from married to widowed or divorced), TOE | 17 | 569 | 16 | 456 | 21 | 113 | 0.005 |
| Lifestyle exposures | |||||||
| Smoking (in pack years), AUE | 9 | 12 | 8 | 11 | 12 | 14 | < 0.001 |
| Smoking (in pack years), TOE | 0.8 | 2.2 | 0.8 | 2.1 | 1.1 | 2.9 | 0.005 |
| Alcohol use (% of the time every now and then or yes), AUE | 89 | 26 | 90 | 24 | 84 | 31 | < 0.001 |
| Alcohol use (% from never user to current user), TOE | 9 | 297 | 9 | 251 | 8 | 46 | 0.914 |
| Environmental exposures | |||||||
| NO2 concentration (in ug/m3), AUE | 27.7 | 1.9 | 27.7 | 1.9 | 27.7 | 1.9 | 0.922 |
| NO2 concentration (in ug/m3), TOE | − 1.6 | 0.6 | − 1.6 | 0.6 | − 1.6 | 0.7 | 0.662 |
| Damp stains in the house (% of the time yes), AUE | 22 | 34 | 22 | 34 | 26 | 36 | 0.014 |
| Damp stains in the house (% from no to yes), TOE | 10 | 295 | 10 | 246 | 11 | 49 | 0.553 |
| Biological exposures | |||||||
| Body mass index (in kg/m2), AUE | 25.6 | 3.5 | 25.4 | 3.3 | 26.9 | 4.2 | < 0.001 |
| Body mass index (in kg/m2), TOE | 0.7 | 0.7 | 0.6 | 0.7 | 0.8 | 0.9 | < 0.001 |
| Use of high blood pressure medication (% of the time yes), AUE | 10 | 21 | 9 | 20 | 15 | 25 | < 0.001 |
| Use of high blood pressure medication (% from no to yes), TOE | 18 | 609 | 16 | 462 | 27 | 147 | < 0.001 |
The AUE and TOE indicate the average value of the exposure over time and the average trend in the exposure over time for continuous exposures, respectively. For the categorical exposures, the proportion of the time that participants were in a particular category (AUE) and the proportion of participants for whom a change from one reference category to another category occurred during the rounds (TOE) is presented.
AUE Area-Under-the-Exposure, TOE trend-of-the-exposure.
P-values were tested using the independent samples t test and chi-square test.