The relationship of different levels of high iodine and goiter in school children: a meta-analysis

Xu, Tingting; Ren, Zhiyuan; Li, Shaohan; Tan, Long; Zhang, Wanqi

doi:10.1186/s12986-021-00563-2

Nutrition & Metabolism

Table 1 The characteristics of 14 cross-sectional studies

From: The relationship of different levels of high iodine and goiter in school children: a meta-analysis

Author	Publish time	Study time	UIC (μg/L)	WIC (mg/L)	n	N	Prevalence of goiter	Quality evaluation
Liu [15]	2010	1999	13.2	–	12	82	14.6	7
			37.3	–	20	379	5.2
			77.7	–	89	1015	8.8
			125.5	–	84	1193	7.0
			174.3	–	78	1329	5.9
			248.1	–	199	2731	7.3
			378.0	–	350	3682	9.5
			599.1	–	237	2026	11.7
			865.3	–	44	364	12.2
			1157.5	–	14	183	7.5
		2002	13.6	–	14	108	13.0
			36.2	–	14	297	4.7
			77.3	–	47	876	5.4
			125.7	–	48	1225	3.9
			174.7	–	57	1321	4.3
			245.2	–	135	2322	5.8
			371.0	–	140	2160	6.5
			547.7	–	48	650	7.4
			862.2	–	11	86	12.9
			1274.4	–	3	56	6.0
		2005	10.6	–	19	172	11.0
			36.0	–	33	426	7.7
			77.7	–	62	1109	5.6
			125.9	–	64	1392	4.6
			175.8	–	72	1503	4.8
			251.8	–	130	3012	4.3
			368.1	–	141	2476	5.7
			574.8	–	39	703	5.5
			868.0	–	2	77	2.6
			1200.0	–	7	69	10.1
		2005	11.3	–	1	53	1.9
			37.2	–	5	126	4.0
			76.5	–	22	386	5.7
			127.5	–	39	662	5.9
			175.2	–	47	783	6.0
			252.2	–	142	1824	7.8
			393.8	–	452	3895	11.6
			762.0	–	359	2621	13.7
			868.0	–	114	675	16.9
			1200.0	–	273	1531	17.8
		2007	13.2	–	237	2419	9.8
			46.2	–	807	6612	12.2
			81.0	–	786	9251	8.5
			124.4	–	548	7205	7.6
			154.6	–	454	6401	7.1
			244.5	–	832	10,274	8.1
			357.2	–	764	8129	9.4
			575.4	–	195	1623	12.0
			875.6	–	11	96	11.5
			1273.4	–	13	77	16.9
Wang [16]	2015	2012	271.0	–	11	291	3.8	7
Wang [16]	2015	2012	692.6	–	28	300	9.3	7
Xiao [17]	2011	2007	319.2	–	61	731	8.3	7
Xiao [17]	2011	2007	189.8	–	69	1248	5.5	7
Jia [18]	2014	2014	74.3	73.8	11	196	5.6	7
			312.8	144.7	25	189	13.2
			455.6	258.5	20	158	12.6
			793.5	501.0	18	165	10.9
Wang [19]	2015	2014	514.0	304.4	9	100	9.0	7
Wang [19]	2015	2014	196.17	141.6	1	100	1.0	7
Yu [20]	2008	1999	83.5	–	192	2708	7.1	10
			242.9	–	119	2708	4.4
			650.9	–	187	2708	6.9
Liu [21]	2007	–	480.4	> 150.0	108	1458	7.4	6
Liu [21]	2007	–	228.0	≤ 150.0	22	1229	1.8	6
Tang [22]	2006	–	612.5	124.2 ± 88.2	141	1184	11.9	6
			269.4	136.6 ± 89.2	95	889	10.7	6
			642.9	183.0 ± 190.2	148	1133	13.1	6
			244.5	124.1 ± 105.1	129	862	9.7
			499.7	112.3 ± 85.3	114	1032	11.1
Jia [23]	2006	–	460.5	> 150.0	84	570	14.7
			460.5	> 150.0	35	269	13.1
			310.3	≤ 150.0	60	656	9.1	6
			310.3	≤ 150.0	23	316	7.3	6
Dai [24]	2013	2004–2010	433.3	–	55	211	26.1
			296.1	–	16	235	6.8
			313.9	–	20	216	9.3	7
			345.9	–	19	208	9.1
			199.8	–	14	237	5.9
			–	≤ 100.0	91	247	36.8
			–	100.0–200.0	573	2019	26.4
			–	200.0–300.0	294	1189	24.7
			–	300.0–400.0	205	648	31.6
			–	> 400.0	741	2230	33.2

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