Table S1. Factors associated with LNM.

Variables	Number	LNM (%)	χ2 value	P value	OR	95% CI	Cramer’s V (P value)
NMIBC	11	9.10	9.547	0.002	16.03	2.00–128.556	Phi=0.268 (0.001)
MIBC	151	61.60
PT2	28	46.40	12.089	0.002			0.283 (0.002)
PT3	60	78.30
PT4	63	52.40
PT2 vs. PT3			8.958	0.003	4.17	1.59–10.94	Phi=0.32 (0.003)
PT2 vs. PT4			0.275	0.6			Phi=0.055 (0.6)
PT3 vs. PT4			9.103	0.003	0.3	0.14–0.67	Phi=0.272 (0.004)
Low grade	10	50.00	0.04	0.84	1.41	0.39–5.09	0.042 (0.596)
High grade	152	58.60
Trigone	72	59.70	0.153	0.7
Local recurrence	56	69.60	4.743	0.03	2.13	1.07–4.22	0.17 (0.03)
No Local recurrence	106	51.90
Lymph node dissection	123	62.60	4.394	0.04	2.17	1.04–4.50	0.17(0.04)
No lymph node dissection	39	43.60

LNM, lymph node metastasis; OR, odds ratio; NMIBC, non-muscle invasive bladder cancer; MIBC, muscle invasive bladder.