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Table 1 Clinical characteristics of patients with pulmonary sclerosing pneumocytoma (N = 61)

From: Pulmonary sclerosing pneumocytoma: clinical features and prognosis

Characteristics All (n = 61) Sublobectomy (n = 36) Lobectomy (n = 25) P value
Age, year     0.359
 Mean ± SD 51.90 (12.40) 50.67 (12.13) 53.68 (13.06)  
 Median (range) 51 (23-73) 51.5 (23-69) 55 (23-73)  
Sex, n (%)     1.000
 Male 5 (8.20) 3 (8.33) 2 (8)  
 Female 56 (91.80) 33 (91.67) 23 (92)  
BMIa, kg/m2 22.69 (2.48) 22.50 (2.19) 22.95 (2.92) 0.494
Smoking history, n (%)     0.430
 Ever 7(11.48) 3 (8.33) 4 (16)  
 Never 54(88.52) 33 (91.67) 21 (84)  
Comorbidity, n (%)
 Hypertension 10 (16.39) 5 (13.89) 5 (20) 0.727
 Hyperglycemia 2 (3.28) 1 (2.78) 1 (4) 1.000
Pulmonary function
 FEV1b, L 2.33 (0.58) 2.27 (0.56) 2.41 (0.61) 0.186
 FEV1/FVCc (%) 77.41 (8.49) 76.52 (10.49) 78.67 (4.46) 0.278
Tumor size, cm     0.004**
 Mean ± SD 2.87 (1.29) 2.48 (1.04) 3.44 (1.04)  
 Median (range) 2 (0.9-7) 2.2 (0.9-5) 3 (2-7)  
Tumor location (lobe)     0.294
 Left upper 12 7 5  
 Left lower 29 17 12  
 Right upper 7 2 5  
 Right middle 2 2 0  
 Right lower 11 8 3  
  1. The data was presented as mean (SD) or median (range)
  2. **P < 0.01. Continuous variables were compared using Student’s t test and categorical variables using chi-squared test
  3. a BMI body mass index
  4. b FEV1: the forced expiratory volume in 1 s
  5. c FEV1/FVC: the forced expiratory volume in 1 second (FEV1)/forced volume vital capacity (FVC) ratio