[Retracted] Serum Adiponectin Level in Different Stages of Type 2 Diabetic Kidney Disease: A Meta-Analysis

Table 1

Characteristics of studies included.

Study	Year	Total sample size	Control			Normoalbuminuria			Microalbuminuria			Macroalbuminuria			NOS
			Sample size	Serum adiponectin		Sample size	Serum adiponectin		Sample size	Serum adiponectin		Sample size	Serum adiponectin
				Mean	SD		Mean	SD		Mean	SD		Mean	SD
Sun [18]	2021	226	60	15.10	1.20	74	12.90	1.40	66	8.70	1.70	26	4.50	1.90	7
Bai [19]	2019	190	50	3.19	1.26	61	4.25	1.33	44	6.34	1.27	35	13.41	2.62	8
Cheng [20]	2017	112	30	6.72	2.70	25	9.57	3.12	27	12.87	3.46	30	17.97	3.84	6
Xu [21]	2016	113	30	11.80	4.20	30	6.70	2.40	25	12.60	4.10	28	18.50	7.90	7
Tian [22]	2016	128	34	12.50	4.80	34	4.90	1.50	29	15.60	1.40	31	25.50	2.10	8
Bi [23]	2016	470	100	13.10	4.90	122	4.90	2.10	123	16.10	2.10	125	26.10	1.90	7
Zhou [24]	2015	172	85	73.40	9.90	37	39.40	13.50	30	54.40	10.20	20	67.80	11.30	6
Lu [25]	2013	258	62	10.22	2.13	62	8.55	1.86	70	5.93	1.64	64	3.58	1.37	7
Nie [26]	2012	140	35	9.72	4.30	35	3.27	0.68	35	10.88	2.85	35	12.75	2.46	8
Lin [27]	2011	200	50	9.58	1.33	50	16.88	1.77	50	22.54	1.86	50	28.12	2.11	6
Tang [28]	2011	132	35	12.70	5.00	35	5.10	1.70	30	15.80	1.60	32	25.70	2.30	8
Zhou [29]	2011	120	30	12.95	2.14	30	3.77	1.45	30	5.12	1.34	30	8.68	1.12	7
Hu [30]	2011	100	25	6.20	3.39	25	2.07	0.54	25	3.62	0.78	25	5.46	1.82	8
Wan [31]	2011	120	30	10.51	3.91	30	5.93	0.67	30	7.75	1.21	30	9.32	3.36	8
Xie [32]	2010	165	40	8.10	2.80	42	10.10	1.90	41	18.20	1.30	42	24.90	3.10	6
Li [33]	2010	220	51	9.69	1.26	67	16.92	1.36	57	21.34	1.67	45	26.21	1.95	8
Zhou [34]	2010	119	30	73.59	10.18	35	39.36	13.92	32	54.38	10.14	22	67.74	14.89	7
Zhong [35]	2010	130	45	5.63	1.16	25	6.28	1.87	31	9.28	2.59	29	11.15	3.18	7
Yang [36]	2010	150	40	5.15	1.99	40	10.12	1.70	40	16.58	2.68	30	7.40	1.28	6
Wan [37]	2010	130	30	11.20	3.50	36	3.40	0.80	34	9.60	2.20	30	14.30	5.60	8
Lin [38]	2010	120	30	6.44	3.11	30	2.21	0.55	30	3.62	0.80	30	5.31	1.86	6
Wu [39]	2009	151	47	10.10	1.82	32	16.41	1.94	40	18.32	1.30	32	25.52	3.19	7
Cheng [40]	2009	120	30	10.51	0.91	30	17.62	0.77	30	23.32	0.36	30	25.75	0.21	8
Yang [41]	2008	90	30	8.81	1.22	20	0.82	0.31	20	2.32	0.36	20	5.22	1.04	7
Liu [42]	2008	120	30	10.51	0.91	30	17.62	0.77	30	22.32	0.36	30	25.75	0.21	7
Yang [43]	2007	117	30	4.25	1.62	33	5.81	1.03	28	6.31	1.99	26	11.32	2.13	8
Zhu [44]	2007	213	50	14.69	7.12	52	7.78	3.55	57	10.15	5.83	54	153.98	6.33	8
Xiao [45]	2006	90	30	9.69	2.23	32	0.74	0.47	14	2.52	0.61	14	5.32	1.86	8
Kato [46]	2008	192	116	6.92	0.43	47	7.68	0.43	24	9.51	0.87	5	16.00	4.43	8
Yilmaz [47]	2008	123	N/A	N/A	N/A	38	24.10	6.10	40	16.80	2.70	45	13.30	3.10	7
Saito [48]	2007	259	49	8.99	1.12	76	6.38	0.56	106	7.67	1.25	28	5.75	0.97	6
Fujita [49]	2006	73	20	10.14	3.12	19	6.44	2.29	18	7.16	2.25	16	11.77	8.01	8
Komaba [50]	2006	153	N/A	N/A	N/A	86	7.08	5.47	44	10.65	6.07	23	14.14	8.71	6
Koshimura [51]	2004	38	N/A	N/A	N/A	18	6.50	2.10	7	7.90	3.80	13	11.00	5.50	6

Mean: μg/ml; SD: standard deviation; N/A: not applicable.