TABLE 3

Incidence rates (IRs) per 100 000 individuals of primary spontaneous pneumothorax in Denmark overall and stratified by sex

VariablesOverallFemaleMale
PatientsIR (95% CI)PatientsIR (95% CI)PatientsIR (95% CI)
Age group      
 0–10 years000000
 11–15 years362.1 (1.5–2.9)20.2 (0.1–0.8)343.9 (2.8–5.5)
 16–20 years27815.6 (9.5–25.6)222.5 (1.6–3.8)25628.1 (24.9–31.8)
 21–25 years24214.2 (8.4–23.9)283.3 (2.3–4.8)21424.7 (21.6–28.2)
 26–30 years18211.5 (6.5–20.5)283.6 (2.5–5.2)15419.3 (16.5–22.6)
 31–35 years1669.6 (5.1–18.1)364.2 (3.0–5.8)13015.0 (12.6–17.8)
 36–40 years1246.5 (3.0–14.0)343.5 (2.5–4.9)909.3 (7.6–11.4)
 Overall10287.3 (6.9–7.8)1502.2 (1.9–2.6)87812.3 (11.5–13.1)
Year
 2009–20101686.0 (5.2–6.9)261.9 (1.3–2.8)14210.0 (8.5–11.8)
 2010–20111967.0 (6.1–8.1)201.4 (0.9–2.2)17612.3 (10.6–14.3)
 2011–20121987.1 (6.2–8.2)382.8 (2.0–3.8)16011.2 (9.6–13.1)
 2012–20132488.7 (7.7–9.6)261.9 (1.3–2.8)22215.6 (13.7–17.8)
 2013–20142188.2 (7.2–9.4)402.9 (2.1–4.0)17812.5 (10.8–14.5)