Table 2.

Relationship between adiponectin levels and breast cancer risk by menopausal status

Study	Menopausal status	Adiponectin levels (µg/ml)	Cases/controls (No.)	OR
Miyoshi et al.15	Premenopausal women	>10.6	6/12	1.00 (reference)
		6.9–10.6	25/16	3.41 (0.99–11.66)
		≤6.9	21/17	3.46 (0.89–13.50)
	Postmenopausal women	>10.6	11/21	1.00 (reference)
		6.9–10.6	11/17	1.94 (0.51–7.44)
		≤6.9	28/17	3.90 (1.23–12.44)
Tian et al.20	Premenopausal women	≤13.37	111/106	1.00 (reference)
		>13.37	30/35	0.84 (0.46–1.52)
	Postmenopausal women	≤15.69	90/77	1.00 (reference)
		>15.69	13/25	0.55 (0.23–0.97)
Tworoger et al.18, a	Premenopausal women	≤9.3; ≤17.4; ≤12.0	316/506	1.00 (reference)
		9.3–11.7; 17.4–20.6; 12.0–15.6		1.05 (0.69–1.59)
		11.7–13.8; 20.6–23.2; 15.6–19.3		1.12 (0.70–1.80)
		>13.8; >23.2; >19.3		1.30 (0.80–2.10)
	Postmenopausal women	≤9.3; ≤17.4; ≤12.0	858/1309	1.00 (reference)
		9.3–11.7; 17.4–20.6; 12.0–15.6		0.91 (0.69–1.21)
		11.7–13.8; 20.6–23.2; 15.6–19.3		0.97 (0.73–1.27)
		>13.8; >23.2; >19.3		0.73 (0.55–0.98)
Cust et al.29	Postmenopausal women	<4.9	105/116	1.00 (reference)
		4.9–9.1	123/110	1.21 (0.80–1.83)
		>9.1	106/108	0.96 (0.55–1.65)
Gaudet et al.24	Postmenopausal women	0.626–19.535	54/62	1.00 (reference)
		19.536–25.758	57/57	1.02 (0.59–1.72)
		25.759–32.921	59/53	1.18 (0.68–2.08)
		32.922–73.588	60/59	1.04 (0.59–1.83)
Macis et al.14	Premenopausal women	<7.2	21/59	1.00 (reference)
		7.2–10.00	16/58	0.73 (0.38–1.40)
		10.0–14.00	11/59	0.54 (0.26–1.12)
		>14.00	9/59	0.39 (0.18–0.88)
Ollberding et al.31	Postmenopausal women	≤5.7	182/177	1.00 (reference)
		5.8–10.0	210/176	1.18 (0.87–1.58)
		10.1–16.1	158/176	0.92 (0.67–1.27)
		>16.1	156/177	0.94 (0.66–1.32)

^aAdiponectin levels were determined in different batches.