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. 2009 Sep 18;21(3):562–567. doi: 10.1093/annonc/mdp357

Table 2.

IGF1R expression and association with clinical characteristics

Characteristic	IGF1R+ (N/%)	IGF1R− (N/%)	P value
All	282/76.4	87/23.6
Female	38/71.7	15/28.3	0.38
Male	244/77.2	72/22.8	0.38
Never smokers	21/70.0	9/30.0	0.44
Smokers (former + current)	248/76.3	77/23.7	0.44
Squamous cell carcinoma	109/82.6	23/17.4	0.04
Other histology	173/73.0	64/27.0	0.04
Grade I–II	168/72.4	64/27.6	0.02
Grade III	104/83.2	21/16.8	0.02
Stage I–II	198/77.7	57/22.3	0.41
Stage III	84/73.7	30/26.3	0.41

IGF1R, insulin-like growth factor receptor 1.