Table 1.

Association Between PGC-1α/ERRα Expression and Clinicopathological Parameters in Patients with Ovarian Cancer

Clinical Features	Total (n)	PGC-1α Expression		χ2	P	ERRα Expression		χ2	P	PGC-1α/ERRα Expression		χ2	P
		High	Low			High	Low			High/High	Neither High
Age, years				0.032	0.859			0.095	0.758			0.033	0.856
<55	42	17	8			15	10			11	14
≥55		12	5			11	6			7	10
Tumor size, cm				3.459	0.063			0.119	0.73			1.073	0.3
<10	41	21	5			17	9			13	13
≥10		8	7			9	6			5	10
Tumor differentiation				4.786	0.029			6.275a	0.027			5.451a	0.04
Well, moderate	37	6	8			6	8			3	11
Poor		18	5			19	4			14	9
FIGO stage				0.149	0.699			1.036	0.309			0.717	0.397
Ⅰ–Ⅱ	41	14	5			10	9			7	12
III–Ⅳ		15	7			15	7			11	11
Lymph node status				1.332a	0.425			5.772a	0.023			7.161a	0.021
Absent	32	13	8			10	11			5	16
Present		9	2			10	1			8	3
CA125, U/mL				0.497	0.481			4.388	0.036			5.802a	0.021
<78	42	8	5			5	8			2	11
≥78		21	8			21	8			16	13
CA153, U/mL				2.844	0.092			2.085	0.149			3.635a	0.078
<14.8	38	5	6			5	6			2	9
≥14.8		20	7			19	8			14	13
HE4, U/mL				0.296	0.67			5.625a	0.025			4.568a	0.05
<75.5	34	6	3			2	7			1	8
≥75.5		19	6			17	8			13	12

Notes: ^aFisher test was performed. The rest of the scores were from Chi-square test.

Abbreviations: ERRα, estrogen-related receptor α; PGC-1α, peroxisome proliferator-activated receptor gamma coactivator 1-alpha.