Table 5 Studies from the Scandinavian countries presenting COPD prevalence estimates
From: Decreased COPD prevalence in Sweden after decades of decrease in smoking
Authors [reference] | Country, area | COPD-definition | Study year | Age-span (yy–yy) | Sample size (n) | COPD prevalence based on spirometry according to different criteria | |||
|---|---|---|---|---|---|---|---|---|---|
Fixed ratio | LLN | Fixed ratio | LLN | ||||||
GOLD | GOLD ≥ 2 | FEV1 < LLN | |||||||
Lundbäck et al. [3] | Sweden | FEV1/VC | 1996–1997 | 46–77 | 1237 | 14.3% | * | 8.1% | * |
Norrbotten | Post-BD | (in 3 age groups) | |||||||
Kotaniemi et al. [30] | Finland, | FEV1/VC | 1996–1997 | 21–70 | 683 | 9.4% | * | 5.4% | * |
Northern part | Post-BD | ||||||||
Lindberg et al. [31] | Sweden | FEV1/VC | 1994 | 23–72 | 666 | 14.1% | * | 7.6% | * |
Norrbotten | Pre-BD | 46–72 | 17.1% | * | 9.7% | * | |||
Vasankari et al. [8] | Finland | FEV1/FVC | 1978–1980 | 30–74 | 6364 | * | M: 4.7%; W: 2.2% | * | M: 3.9%; W: 1.4% |
Nation wide | Pre-BD | 2000–2001 | 30–74 | 5495 | * | M: 4.3%; W: 3.1% | * | M: 3.6%; W: 1.5% | |
Fabricius et al.£, [32] | Denmark | FEV1/FVC | 2001–2003 | ≥ 35 | 5299 | 17.4% | * | 11.2% | * |
Copenhagen | Pre-BD | ||||||||
Danielsson et al. [33] | Sweden | FEV1/FVC | 2006–2007 | ≥ 40 | 548 | 16.2% | 10.0% | 6.7% | * |
Uppsala | Post-BD | ||||||||
Waatevik et al.£, [34] | Norway | FEV1/FVC | 2003–2005 | 35–90 | 1664 | 13.7% | * | * | * |
Bergen | Post-BD | ||||||||
Backman et al. [9] | Sweden | FEV1/FVC | 1994 | 23–72 | 660 | 10.5% | 9.3% | 8.5% | 8.1% |
Norrbotten | Post-BD | 46–72 | 481 | 13.2% | 10.7% | 11.6% | 9.7% | ||
Backman et al. [9] | Sweden | FEV1/FVC | 2009 | 23–72 | 623 | 8.5% | 6.3% | 3.9% | 3.2% |
Norrbotten | Post-BD | 46–72 | 465 | 11.2% | 7.4% | 5.6% | 4.6% | ||
Bhatta et al. [10] | Norway | FEV1/FVC | 1995–1997 | ≥ 40 | 7158 | 16.7% | 10.4% | M: 10.6%; W:6.1% | * |
Nord-Trøndelag | Pre-BD | 2006–2008 | 41–99 | 8788 | 14.8% | 7.3% | M: 8.2%; W: 6.5% | * | |