Evaluation of efficacy and safety of different endoscopic polypectomy techniques for colonic polyps

Table 2 Preoperative laboratory blood tests, mean ± SD

Parameters	HFE (n = 107)	CSP (n = 106)	EMR (n = 108)	P1 value	P2 value	P3 value
Prothrombin time (seconds)	11.54 ± 1.02	11.25 ± 1.73	11.73 ± 1.45	0.837	0.093	0.759
White blood cell count (× 109/L)	5.89 ± 1.12	5.74 ± 1.28	5.52 ± 1.34	1.104	0.633	0.090
Platelet count (× 109/L)	205.37 ± 54.99	208.37 ± 52.75	211.76 ± 51.84	2.055	1.905	1.146
Hemoglobin (g/L)	147.63 ± 16.93	145.72 ± 14.13	144.72 ± 16.21	1.113	1.887	0.597

¹High-frequency electroresection vs cold snare polypectomy.

²Cold snare polypectomy vs endoscopic mucosal resection.

³High-frequency electroresection vs endoscopic mucosal resection.

HFE: High-frequency electroresection; CSP: Cold snare polypectomy; EMR: Endoscopic mucosal resection.