Association between obesity-related adipokines and colorectal cancer: A case-control study and meta-analysis

Table 1 Serum adipokine levels in patients with colorectal cancer and healthy controls n (%)

	Total	Case	Control	P value
Age1	66.5 ± 10.0	66.1 ± 10.0	66.9 ± 10.0	0.67
≤ 60	39 (19.5)	20 (20.0)	19 (19.0)
61-70	87 (43.5)	46 (46.0)	41 (41.0)
≥ 71	74 (37.0)	34 (34.0)	40 (40.0)
Sex				1.00
Male	120 (60.0)	60 (60.0)	60 (60.0)
Female	80 (40.0)	40 (40.0)	40 (40.0)
Serum levels
Adiponectin (μg/mL)1	6.0 ± 4.9	5.7 ± 4.4	6.2 ± 5.3	0.47
Leptin (ng/mL)1	7.8 ± 8.9	6.8 ± 9.3	8.8 ± 8.5	0.12
Resistin (ng/mL)1	3.9 ± 2.3	4.9 ± 2.3	2.8 ± 1.7	< 0.0001
IL-6 (pg/mL)1	21.0 ± 103.6	11.3 ± 11.8	30.8 ± 145.8	0.19
TNFα (pg/mL)	6.0 ± 13.2	6.4 ± 12.5	5.7 ± 13.9	0.68

¹Value is mean ± SD. P value for the comparison of cases and controls by t test or χ² test, as appropriate. TNF: Tumor necrosis factor; IL: Interleukin.