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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

 WomenMenTotal
ECRHS I 1993/94
 Sample149815023000
 Excluded191837
 Participated127211882460
Response rate, %
 Absolute84.979.182.0
 Adjusted86.080.183.0
 Mean age of respondents, years30.330.130.2
SOHOS 2014/15
 Sample149815023000
 Excluded165119284
 Participated607369976
Response rate, %
 Absolute40.524.632.5
 Adjusted45.526.735.9
 Mean age of respondents, years33.032.032.6
  1. Excluded = have moved abroad, unable to answer, or died; Absolute Response Rate = Participated/Sample; Adjusted Response Rate = Participated/(Sample–Excluded)