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Table 1 Baseline demographics of the patients involved in this research

From: Elaboration of a multimodal MRI-based radiomics signature for the preoperative prediction of the histological subtype in patients with non-small-cell lung cancer

CharacteristicsTraining cohort
(n = 100)
Validation cohort
(n = 48)
p value
Age, years  0.055
 Median [range]58 [20, 76]61 [42, 83] 
Sex, no. (%)  0.220
 Male79/100 (79%)33/48 (68.75%) 
 Female21/100 (21%)15/48 (31.25%)
Smoking, no. (%)  0.707
 Yes70/100 (70%)32/48 (66.7%) 
 No30/100 (30%)16/48 (33.3%) 
Side, no. (%)  0.389
 Upper left lobe34/100 (34%)12/48 (25%) 
 Lower left lobe14/100 (14%)8/48 (16.7%) 
 Upper right lobe22/100 (22%)12/48 (25%) 
 Middle right lobe4/100 (4%)2/48 (4.2%) 
 Lower right lobe26/100 (26%)14/48 (29.1%) 
Location, no. (%)  0.216
 Peripheral63/100 (63%)25/48 (52.1%) 
 Central37/100 (37%)23/48 (47.9%) 
LD, mma  0.230
 Median [range]54 [10, 115]43.5 [15, 100] 
LPD, mma  0.838
 Median [range]36.5 [8, 77]35 [11, 90] 
CEA, (ng/ml)a  0.380
 Median [range]4.7 [0.486, 1135]7.11 [1.19, 646.4] 
Histological subtype, no. (%)  0.164
 Squamous cell carcinoma50/100 (50%)18/48 (37.5%) 
 Adenocarcinoma50/100 (50%)30/48 (62.5%) 
  1. aLD, LPD and CEA indicate the longest diameter, the longest perpendicular diameter, and carcinoembryonic antigen, respectively