Table 4 Difference between diagnoses in subjects with shorter* and longer** time elapsed from self-reported asthma diagnosis
From: Agreement between self-reported and registered age at asthma diagnosis in Finland
Helsinki | Western Finland | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
< 10 years elapsed from self-reported asthma diagnosis | ≥ 10 years elapsed from self-reported asthma diagnosis | P | < 10 years elapsed from self-reported asthma diagnosis | ≥ 10 years elapsed from self-reported asthma diagnosis | P | |||||
Variable | Median | IQR | Median | IQR | Median | IQR | Median | IQR | ||
Difference between self-reported and registered diagnoses (years) | −1.0 | −1.0 to 0 | −5.0 | −12.0 to − 1.0 | < 0.001 | 0 | −1.0 to 0 | −2.0 | −6.5 to − 0.5 | < 0.001 |
N | % | N | % | N | % | N | % | |||
Categorized difference between self-reported and registered diagnoses | ||||||||||
- Good agreement (− 5 to 5 years) | 50 | 98.0 | 72 | 49.3 | < 0.001 | 40 | 97.6 | 72 | 69.9 | < 0.001 |
- Poor agreement ( < − 5 or > 5 years) | 1 | 2.0 | 74 | 50.7 | ≤ 3 | ≤ 7.3 | 31 | 30.1 | ||