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Table 1 Patients’ demographic data

From: Is preoperative protein-rich nutrition effective on postoperative outcome in non-small cell lung cancer surgery? A prospective randomized study

   Control group Nutrition group Total P value
Agea   59.04 ± 7.61/year 57.80 ± 9.70/year 58.35 ± 8.8/year 0.482
Sex Male 25 (92.6 %) 29 (93.5 %) 54 (93.1 %) 1
Female 2 (7.4 %) 2 (6.5 %) 4(6.9 %)  
FEV-1a   74.5 ± 15.01 % 71.55 ± 15.52 % 72.84 ± 15.23 % 0.594
BMI Thoracotomy 26.7 ± 4.20 24.0 ± 3.69 25.21 ± 4.11 0.051
VATS 26.6 ± 2.26 27.3 ± 4.19 26.92 ± 3.31 0.632
Total 26.7 ± 3.49 25.2 ± 4.13 25.86 ± 3.88 0.138
Operation Type Thoracotomy 16 (59.3 %) 20 (64.5 %) 36 (62.06 %) 0.788
VATS 11 (40.7 %) 11 (35.5 %) 22 (37.94 %)  
Resection Type LUL 5 (18.52 %) 9 (29.03 %) 14 (24.14 %) 0.788
LLL 4 (14.81 %) 6 (19.35 %) 10 (17.24 %)  
RLL 5 (18.52 %) 6 (19.35 %) 11 (18.97 %)  
L-P 2 (7.41 %) 5 (16.13 %) 7 (12.07 %)  
RUL 8 (29.63 %) 3 (9.68 %) 11 (18.97 %)  
RSBL 2 (7.41 %) 2 (6.45 %) 4 (6.89 %)  
RIBL 1 (3.7 %)   1 (1.72 %)  
Drainage Timeb   6 (42–1)/day 4 (15–2)/day 4.9 ± 2.26/day 0.019
Complication PAL 7 (58.33 %) 4 (66.67 %) 11 (18 %)  
Atelectasis 3 (25 %) 1 (16.67 %) 4 (6.8 %)  
Pneumonia 1 (8.33 %) 1 (16.67 %) 2 (3.4 %)  
Arhytmia 1 (8.33 %)   1 (1.7 %)  
Total 12 (44.4 %) 6 (19.4 %) 18 (31.04 %) 0.049
  AC 17 (62.96 %) 12 (38.71 %) 27 (46.55 %) 0.122
Histology SCC 9 (33.33 %) 18 (58.06 %) 27 (46.55 %)  
  Carcinoid 1 (3.7 %) 1 (3.23 %) 2 (6.9 %)  
Stage IA 7 (25.93 %) 11 (35.48 %) 18 (31.04 %) 0.608
  IB 6 (22.22 %) 3 (9.68 %) 9 (15.52 %)  
  IIA 8 (29.63 %) 7 (22.58 %) 15 (25.86 %)  
  IIB 3 (11.11 %) 6 (19.35 %) 9 (15.52 %)  
  IIIA 3 (11.11 %) 4 (12.9 %) 7 (12.06 %)  
Concomitant Diseases Hypertension 4 (44.44 %) 5 (38.46 %) 9 (40.91 %)  
COPD   3 (23.08 %) 3 (13.64 %)  
CAD   2 (15.38 %) 2 (9.09 %)  
MNG 2 (22.22 %) 1 (7.69 %) 3 (13.64 %)  
CHF   1 (7.69 %) 1 (4.55 %)  
Asthma   1 (7.69 %) 1 (4.55 %)  
AS 1 (11.11 %)   1 (4.55 %)  
Parkinson 1 (11.11 %)   1 (4.55 %)  
PVD 1 (11.11 %)   1 (4.55 %)  
Total 9 (33.3 %) 13 (41.9 %) 22 (37.9 %) 0.592
  1. Pearson Chi-Square Test (Monte Carlo) - Mann Whitney U Test (Monte Carlo) - Independent T Test (Bootstrap)
  2. aMean ± SD, bMedyan Range (Maximum- Minimum), n (%)
  3. BMI: Body Mass Index; VATS: Video-assisted thoracoscopic surgery; LUL: Left Upper Lobectomy; LLL: Left Lower Lobectomy; RLL: Right Lower Lobectomy; L-P: Left Pneumonectomy; RUL: Right Upper Lobectomy; RSBL: Right Superior Bilobectomy; RIBL: Right İnferior Bilobectomy; PAL: Prolonged Air Leak; AC: Adenocarcinoma; SCC: Squamous Cell Carcinoma; CAD: Coronary Artery Disease; COPD: Chronic obstructive pulmonary disease; MNG: Multinodular goiter; CHF: Congestive heart failure; AS: Ankylosing spondylitis; PVD: Peripheral vessel disease