Table 2.

Univariate and multivariate analysis of clinical factors associated with the success of FLNM

	Univariate analysis			Multivariate analysis
	FLNM-f (n = 56)	FLNM-s (n = 136)	P value	OR	95% C.I	P value
Age (yr)			0.857
< 70	37 (66.1%)	88 (64.7%)		–	–	–
≥ 70	19 (33.9%)	48 (35.3%)
Sex			0.817
Male	34 (60.7%)	85 (62.5%)		–	–	–
Female	22 (39.3%)	51 (37.5%)
BMI			0.002
< 25	29 (51.8%)	102 (75.0%)		0.307	0.148–0.636	0.001
≥ 25	27 (48.2%)	34 (25.0%)
Cancer location			0.044
Left-sided colon	49 (87.5%)	101 (74.3%)		2.021	0.764–5.347	0.157
Right-sided colon	7 (12.5%)	35 (25.7%)
T stage			0.260
T1–T2	33 (58.9%)	68 (50.0%)		–	–	–
T3–T4	23 (41.1%)	68 (50.0%)
N stage			0.847
N0	40 (71.4%)	99 (72.8%)		–	–	–
N1–2	16 (28.6%)	37 (27.2%)
Obstruction			0.839
Negative	46 (82.1%)	110 (80.9%)		–	–	–
Positive	10 (17.9%)	26 (19.1%)
CEA level (ng/ml)			0.750
< 5.0	46 (82.1%)	109 (80.1%)		–	–	–
≥ 5.0	10 (17.9%)	27 (19.9%)
Albumin level (g/dl)			0.673
≥ 3.5	55 (98.2%)	131 (96.3%)		–	–	–
< 3.5	1 (1.8%)	5 (3.7%)
ICG tattooing dosage (mg)			0.002
≥ 1.0	7 (12.5%)	6 (4.4%)		1.579	0.273–69.124	0.610
0.5–1.0	12 (21.4%)	63 (46.3%)		1	–	–
< 0.5	37 (66.1%)	67 (49.3%)		0.350	0.155–0.793	0.012
Tattooing injection site			< 0.001
Single	16 (28.6%)	10 (7.4%)		4.068	0.899–18.403	0.068
Multiple (≥ 2 sites)	40 (71.4%)	126 (92.6%)
Camera light source			< 0.001
Xenon	24 (42.9%)	20 (14.7%)		2.856	1.056–7.723	0.039
Laser	32 (57.1%)	116 (85.3%)

FLNM fluorescence lymph node mapping, BMI body mass index, CEA carcinoembryonic antigen, OR odd ratio, CI Confidence interval, ICG Indocyanine green