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. 2019 Jan 31;39(1):29–36. doi: 10.5144/0256-4947.2019.29

Table 1.

Demographic and clinical characteristics of the patients (N=800).

Characteristics n (%)

Age (years)
 17–45 128 (16)
 46–65 212 (27)
 >65 460 (58)
Gender
 Male 373 (47)
 Female 427 (53)
Nationality
 Saudi 794 (99)
 Non-Saudi 6 (1)
Comorbid illness
 Diabetes mellitus 530 (66)
 Chronic kidney disease 175 (22)
 Cystic fibrosis 1 (0.1)
 Chronic obstructive pulmonary disease 154 (19)
 Asthma 236 (30)
 Lung cancer 30 (4)
Other risk factors
 Smoker 101 (13)
 Immunosuppressant therapy 82 (10)