Table 5.

Comparative levels of well-known lung cancer biomarkers in blood plasma of patients with adenocarcinoma and squamous lung cancer and healthy people.

Tumor-Associated Protein	Adenocarcinoma	Squamous Carcinoma	Normal
CEA	30.76 ng mL−1 [61] 0.6–588 ng mL−1 [23] 3.5–11.1 ng mL−1 [66]	4.49 ng mL−1 [134] 0.8–587 ng mL−1 [23]	<5.0 ng mL−1 5.0 ng mL−1 [23,61] <20.9 ng mL−1 6.5 ng mL−1 [66]
NSE	17.95 ng mL−1 [134]	16.83 ng mL−1 [134]	15.7–17.1 ng mL−1 15.2 ng mL−1 13 ng mL−1 [23]
CYFRA21-1	4.00 ng mL−1 [61] 5.79 ± 6.75 ng mL−1 [63] 1.3–4.4 ng mL−1 [66]	10.34 ng mL−1 [61]	<3.3 [134] 3.3 ng mL−1 [23,61] 0.5 ng mL−1 [23] 2.0 ng mL−1 [66]
SCCA	0.22 ng mL−1 [61] 0.5–1.7 >2 ng mL−1 [66]	3.79 ng mL−1 [61]	1.5 ng mL−1 [66]
TPS	10–3842 ng mL−1 [23]	0–3000 ng mL−1 [23]	34.9 ng mL−1 [23]