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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Lung Cancer. 2019 Nov 11;139:68–72. doi: 10.1016/j.lungcan.2019.11.001

Table 2.

Patient demographics and outcomes in patients who underwent minimally invasive surgery in late-time period (2014-15) - comparison between no epidural analgesia and epidural analgesia

MIS 2014-15 (n=308)
No epidural (n=150) Epidural (n=158) P
Age 68 (62, 74) 70 (62, 76) 0.077

Sex Female 94 (63%) 106 (67%) 0.5
Male 56 (37%) 52 (33%)

Smoking status Never 30 (20%) 34 (22%) 0.4
Former 102 (68%) 112 (71%)
Current 18 (12%) 12 (8%)

COPD history 33 (22%) 36 (23%) 0.9

CVD history 29 (19%) 25 (16%) 0.5

DM history 21 (14%) 18 (11%) 0.5

CCI 0 87 (58%) 90 (57%) 0.9
1 41 (27%) 39 (25%)
2 15 (10%) 20 (13%)
≥3 7 (5%) 9 (6%)

BMI 26 (23, 30) 27 (23, 31) 0.9

FEV1 (%) 96 (84, 106) 98 (85, 110) 0.5

DLCO (%) 83 (72, 98) 82 (68, 96) 0.5

Resected lobe RUL 59 (39%) 50 (32%) 0.2
RML 10 (7%) 9 (6%)
RLL 24 (16%) 42 (27%)
LUL 33 (22%) 37 (23%)
LLL 24 (16%) 20 (13%)

Tumor size (cm) 2.1 (1.6, 3.0) 2.2 (1.5, 3.2) 0.9

pStage 1 121 (81%) 123 (78%) 0.6
≥2 29 (19%) 35 (22%)

Histology Adenocarcinoma 121 (81%) 143 (91%) 0.15
Squamous 22 (15%) 11 (7%)
Adenosquamous 2 (1%) 1 (1%)
Large/pleomorphic 5 (3%) 3 (2%)

Outcomes

LOS 3 (2, 5) 4 (3, 5) 0.038

Grade 2* morbidity (any) 17 (11%) 16 (10%) 0.9
Grade 2* morbidity (respiratory) 9 (6%) 10 (6%) 1
Grade 2* morbidity (cardiovascular) 8 (5%) 8 (5%) 1

Severe# morbidity (any) 7 (5%) 11 (7%) 0.5
Severe# morbidity (respiratory) 6 (4%) 5 (3%) 0.8
Severe# morbidity (cardiovascular) 0 (0%) 2 (1%) 0.5

30-day mortality 0 (0%) 2 (1%) 0.5

Data are number (%) or median (25%, 75%).

*

Grade 2 determined by common terminology criteria for adverse events (CTCAE).

#

CTCAE grade ≥3.

BMI, body mass index; CCI, Charlson comorbidity index; COPD, chronic obstructive pulmonary disease; CVD, cardiovascular disease; DLCO, diffusion capacity of th e lungs for carbon monoxide; DM, diabetes mellitus; FEV1, forced expiratory volume in 1 second; LOS, length of stay; MIS, minimally invasive surgery;pStage, pathologic stage.