Table 1 Characteristics of study sample and respondents by study year and sex
From: Change in the symptom profile treated as asthma – two cross-sectional studies twenty years apart
Women | Men | Total | |
|---|---|---|---|
ECRHS I 1993/94 | |||
Sample | 1498 | 1502 | 3000 |
Excluded | 19 | 18 | 37 |
Participated | 1272 | 1188 | 2460 |
Response rate, % | |||
Absolute | 84.9 | 79.1 | 82.0 |
Adjusted | 86.0 | 80.1 | 83.0 |
Mean age of respondents, years | 30.3 | 30.1 | 30.2 |
SOHOS 2014/15 | |||
Sample | 1498 | 1502 | 3000 |
Excluded | 165 | 119 | 284 |
Participated | 607 | 369 | 976 |
Response rate, % | |||
Absolute | 40.5 | 24.6 | 32.5 |
Adjusted | 45.5 | 26.7 | 35.9 |
Mean age of respondents, years | 33.0 | 32.0 | 32.6 |