Table 1

Demographics, population size, number of cases of chronic obstructive pulmonary disease (COPD) and age-adjusted rate of COPD (per 100 000 person-years) between 1 January 1964 and 31 December 2010 in Swedish-born adoptees born during 1932–2004

PopulationCOPD events
NPer centNPer centIncidence rate (per 100 000 person-years)95% CI
Total population and overall COPD incidence rate80 214197885.681.8 to 89.4
Gender
 Male39 93349.885143.078.673.3 to 83.9
 Female40 28150.2112757.092.086.7 to 97.4
Age at diagnosis (years)
 <401969.98.87.6 to 10.1
 40–4924112.238.533.7 to 43.4
 50–5962331.5147.3135.8 to 158.9
 ≥6091846.4413.9387.1 to 440.6
Birth year
 1932–193978919.852126.365.359.7 to 71.0
 1940–194923 41429.290145.691.285.3 to 97.2
 1950–195921 01226.237318.946.241.5 to 50.9
 1960–196918 64823.21216.144.336.4 to 52.2
 1970–197968178.5472.425.318.0 to 32.5
 1980–200424323.0150.811.25.5 to 16.8
Period of diagnosis
 1964–1973291.58.75.5 to 11.9
 1974–1983814.113.210.3 to 16.0
 1984–19931487.530.825.8 to 35.8
 1994–190362031.368.563.1 to 73.9
 2004 or later107554.389.083.6 to 94.3
Education level (years)
 ≤912 67515.846623.698.589.6 to 107.5
 10–1150 78663.3126063.794.389.1 to 99.5
 ≥1216 75320.925212.751.144.8 to 57.4
Geographic region of residence
 Large cities57 54671.7166584.284.079.9 to 88.0
 Southern Sweden1661120.723511.9118.4103.3 to 133.5
 Northern Sweden60577.6783.9106.983.2 to 130.7
Biological parent(s) with COPD
 Yes855410.728314.3141.7125.2 to 158.2
 No71 66089.3169585.781.177.2 to 85.0
Adoptive parent(s) with COPD
 Yes79289.923111.7117.6102.4 to 132.8
 No72 28690.1174788.382.979.0 to 86.8