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Table 1 The clinical characteristics of 144 young patients with advanced non-small cell lung cancer

From: Advanced non-small cell lung cancer in patients aged 45 years or younger: outcomes and prognostic factors

Clinical characteristics n(%)
Age, median (range) 39.1 (22–45)
BMI (kg/m2) 22.1 ± 3.3
Male gender 70 (48.6%)
Smoking (current or ex-smoker) 62 (43.1%)
Initial presentations  
Pulmonary  
cough 78 (54.2%)
dyspnea 28 (19.4%)
chest pain/tightness 25 (17.4%)
hemoptysis 18 (12.5%)
hoarseness 4 (2.7%)
Extrapulmonary  
bone/muscle pain 15 (10.4%)
subcutaneous mass/lymphadenopathy 7 (4.9%)
fever 7 (4.9%)
focal neurological signs 6 (4.2%)
headache 5 (3.5%)
body weight loss 5 (3.5%)
others 8 (5.6%)
health exam 6 (4.2%)
Performance status (PS)  
0-1 106 (73.6%)
2-4 38 (26.4%)
Disease stage  
IIIB 40 (27.8%)
IV 104 (72.2%)
Histology  
Adenocarcinoma 119 (82.6%)
Squamous cell carcinoma 9 (6.3%)
Undifferentiated carcinoma 16 (11.1%)
  1. BMI: body mass index.