Evidence of mycobacterial disease in COPD patients with lung volume reduction surgery; the importance of histological assessment of specimens: a cohort study

Table 1 Demographic and surgical data

Demographic and surgical data
No. of patients	126
Total no. of operations	142
Age, yr (mean ± SD) (Range: 29 – 81 yr)	57.3 ± 9.74
Gender M	107 (75%)
F	35 (25%)
BMI (mean ± SD)	23.52 ± 4.16
Exacerbations/year (mean ± SD)	2.59 ± 2.61
FEV₁, % predicted (mean ± SD)	36.30 ± 16.83
FVC, % predicted (mean ± SD)	81.27 ± 20.52
TLCO, % predicted (mean ± SD)	40.47 ± 16.99
RV, % predicted (mean ± SD)	216.48 ± 59.29
TLC, % predicted (mean ± SD)	128.61 ± 20.43
LVRS Operations	112 (79%)
Bilateral	27 (24%)
Unilateral*	85 (76%)
Right	52 (61%)
Left	33 (39%)
Bullectomy^	30 (21%)

*15 patients had both R and L LVRS done on separate dates.
^1 patient had both R and L bullectomy on separate dates.
BMI: body mass index; FEV₁: forced expiratory volume in 1 s; LVRS: lung volume reduction surgery. Data shown as mean ± Standard Deviation (SD).

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