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. 2020 Nov 19;21:306. doi: 10.1186/s12931-020-01573-z

Table 1.

Basic characteristics of the patients included in the study

N(%), mean ± SEM
Age, years 65.8 ± 1.1
Male 90 (62)
Smoking status
Current smoker 48 (33)
Past smoker 64 (44)
Never smoker 33 (23)
ASA class
I–II 38 (26)
III–V 107 (74)
BMI 25.6 ± 0.4
Mallampati score
1–2 40 (27.6)
3–4 105 (72.4)
Neck circumference, cm 39.7 ± 0.37
Snore
According to patient 74 (51)
According to sleep report 121 (83)
Comorbidities
Alcoholism 18 (12)
Cerebral vascular disease 18 (12)
Chronic obstructive pulmonary disease 71 (49)
Congestive heart failure 11 (8)
Coronary artery disease 27 (19)
Depression 21 (14)
Diabetes mellitus 21 (14)
Liver disease 20 (14)
Malignant solid tumour 7 (5)
Pulmonary neoplasia 3 (2)
Renal disease 37 (26)
Rheumatological disease 10 (7)
Other* 16 (11)

*Other includes drug abuse, hematologic malignancy, HIV and immunosuppression