Table 1. The univariate and multivariate COX regression analysis of m6A regulatory genes for patients' overall survival (OS) in endocrine system tumors.

Cancer types		Univariate		Multivariate
		HR (95%CI)	P	HR	P
ACC	gender	1.100591489	0.814544864	1.038052354	0.930365584
	stage	2.760634449	<0.01	0.732881514	0.571016476
	T	3.237383176	<0.01	3.747329892	0.005749074
	N	1.829492414	0.269274473	2.918855029	0.137599231
	riskScore	1.193940656	<0.01	1.13395091	0.010312723
PCPG	gender	3.131482468	0.198106512	10.54784495	0.0623891
	riskScore	1.001445171	0.004298715	1.002063944	0.001882145
THCA	age	1.155357049	<0.01	1.166359177	0.000826538
	gender	0.868700107	0.860752257	0.731485506	0.748013828
	stage	2.729834716	0.002868951	0.796474584	0.823787006
	T	2.4428418	0.028302365	2.563634273	0.295472549
	M	2.560644338	0.379583475	3.906592763	0.292240082
	N	2.086807866	0.298770285	0.388357974	0.367125281
	riskScore	1.020547508	0.014232509	1.015493346	0.147944117
THYM	gender	0.629466902	0.49190441	0.66426715	0.550430644
	riskScore	<0.01	0.000837672	>1	0.000987518
Total1	gender	1.596802381	0.15281085	1.342885697	0.38062215
	stage	2.73244358	<0.01	2.124943581	0.002348671
	T	3.351611782	<0.01	1.668245363	0.051414123
	N	0.616791825	0.152388789	0.400896738	0.011567273
	riskScore	164.1049178	<0.01	47.82932365	<0.01
Total2	gender	1.271577618	0.642975417	1.180127876	0.749370968
	riskScore	414.944273	0.012117844	407.8618477	0.01288766

Note: Ambiguous variables (Nx, Mx, N/A, discrepancy and Gx) were excluded. ACC, Adrenal cortical carcinoma;

PCPG, Pheochromocytoma and Paraganglioma; THCA, Thyroid carcinoma; THYM, Thymoma;

Total1, Adrenal cortical carcinoma and Thyroid carcinoma; Total2, Pheochromocytoma and Paraganglioma and Thymoma.