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. 2014 Jan 6;4(1):e004069. doi: 10.1136/bmjopen-2013-004069

Table 1.

Age, gender and education level distribution of patients with chronic obstructive pulmonary disease

Gender N Per cent
Male 63 342 48.1
Female 68 469 51.9
Married or cohabiting 54.0
Age distribution
 <14
 14–20 136 0.1
 20–29 394 0.3
 30–39 1717 1.3
 40–49 6664 5.1
 50–59 19 601 14.9
 60–69 38 297 29.1
 70–79 51 524 39.1
 80–92 13 478 10.2
 ≥92
Education level
 Primary 80 483 61.1
 Secondary 864 0.7
 Vocational 40 050 30.4
 Short college 1824 1.4
 Medium college 6784 5.1
 Master/PhD 1806 1.4
Total 131 811 100.0