Table 2. PKM2 immunostaining results of patients with lung adenocarcinoma.

Tissue type	Number	Male	Female	Positive rate	Intensity	Total staining Scorea,
Adjacent normal tissues	30	14	16	0.47±0.68	0.57±0.86	0.80±1.47
Well	21	11	10	1.43±0.87	1.05±0.59	1.86±1.56
Moderately	37	16	21	1.73±0.96	1.76±0.93	3.41±2.40
Poorly	40	19	21	2.75±0.44	2.63±0.49	7.18±1.65

a: Total staining of PKM2 was scored as the product of the staining intensity (on a scale of 0–3) × the percentage of cells stained (on a scale of 0–3).