Neck circumference in relation to glycemic parameters: a systematic review and meta-analysis of observational studies

Saneei, Parvane; Shahdadian, Farnaz; Moradi, Sajjad; Ghavami, Abed; Mohammadi, Hamed; Rouhani, Mohammad Hossein

doi:10.1186/s13098-019-0445-7

Table 1 Description of the studies included in the meta-analysis

From: Neck circumference in relation to glycemic parameters: a systematic review and meta-analysis of observational studies

First author (year)	Study/country	Subject and gender	Age range Or mean ± SD (y)	Race/ethnicity	Mean NC ± SD	Sampling method	Statistical test used	Reported or extracted data	Adjusted variables	Participants	Quality Score^a
Dixon 2002 [25]	–/USA	F: 107	19–48	NR	40.6 ± 2.81	Consecutive	Pearson	FBG: 0.095 Insulin: 0.504 HbA1c: 0.095	Unadjusted	Severely obese premenopausal women	8/10
Ben-Noun 2003 [20]	–/Israel	M: 231 F: 330	≥18	Jewish	38.2 ± 2.7 34.2 ± 2.5	Consecutive	Pearson	FBG: 0.21 FBG: 0.44	Unadjusted	Healthy	8/10
Onat 2009 [5]	–/Turkey	M: 934	55.1 ± 12	NR	38.8 ± 2.9	Random	Pearson	FBG: 0.05 Insulin: 0.37 HOMA-IR: 0.35	Age	Healthy	9/10
Onat 2009 [5]	–/Turkey	F: 978			34.8 ± 2.75			FBG: 0.11 Insulin: 0.27 HOMA-IR: 0.30	Age	Healthy	9/10
Preis 2010 [13]	Framingham Heart Study cohorts/USA	M: 1720	28–62	NR	40.5 ± 2.9	Random	Pearson	FBG: 0.25 Insulin: 0.48 HOMA-IR: 0.49	Age	Healthy	9/10
Preis 2010 [13]	Framingham Heart Study cohorts/USA	F: 1587			34.2 ± 2.8			FBG: 0.34 Insulin: 0.47 HOMA-IR: 0.51	Age	Healthy	9/10
Fitch 2011 [26]	Massachusetts, USA	M: 43/F: 131	18–65	NR	37.0 ± 3.96	Non-random	Pearson	FBG: 0.27 Insulin: 0.18 HbA1c: 0.16	Unadjusted	HIV-infected	8/10
Fitch 2011 [26]	Massachusetts, USA	M: 26/F: 128			36.4 ± 3.72			FBG: 0.27 Insulin: 0.26 HbA1c: 0.28		Healthy
Zhou 2013 [28]	–/China	M: 2508 men	20–85	Asian	37.4 ± 2.46	Random	Pearson	FBG:0.177	Age	Healthy	9/10
Zhou 2013 [28]	–/China	F: 1693			32.4 ± 2.24			FBG: 0.180	Age	Healthy	9/10
Stabe 2013 [34]	BRAMS/Brazil	M: 301	18–60	Spanish	39.7 ± 2.9	Non-random	Spearman	FBG: 0.17 Insulin: 0.21 HOMA-IR: 0.30 HbA1c: 0.21	Age	Healthy	9/10
Stabe 2013 [34]	BRAMS/Brazil	F: 752			35.9 ± 2.8			FBG: 0.15 Insulin: 0.30 HOMA-IR: 0.42 HbA1c: 0.20	Age	Healthy	9/10
Pokharel 2014 [17]	–/USA	M: 845	45–63	NR	43.1 ± 9.65	Non-random	Spearman	FBG: 0.15	Unadjusted	Retried NFL players/healthy	9/10
Kumar 2014 [29]	–/India	M: 250/F: 181	> 35	Asian	35.6 ± 3.37	Non-random	Pearson	FBG: 166	Unadjusted	Patients of a clinic	9/10
Aoi 2014 [22]	–/Japan	F: 64	62.4 ± 7.1	Asian	32.0 ± 1.6	Non-random	Pearson	HOMA-IR:0.263 HbA1c:0.298	Age	Healthy	9/10
Yan 2014 [30]	–/China	M = 971	Over 65	Asian	37.8 ± 2.8	Random	Pearson	FBG: 0.2	Unadjusted	Healthy	8/10
Yan 2014 [30]	–/China	F: 1121	years		34.4 ± 2.7			FBG: 0.2	Unadjusted	Healthy	8/10
Torriani 2014 [27]	–/USA	M = 152	55 ± 17	NR	44 ± 6	Consecutive	Pearson	FBG:0.28	Age, disease status, sex	Healthy	10/10
Torriani 2014 [27]	–/USA	F = 151			39 ± 7			FBG: NS	Age, disease status, sex	Healthy	10/10
Wang 2015 [14]	–/China	M: 1144	20–65	Asian	39.4 ± 6.92	Random	Pearson	FBG: 0.25 HOMA-IR: 0.18	Unadjusted	Healthy	8/10
Wang 2015 [14]	–/China	F: 2163			36.2 ± 4.31			FBG: 0.06 HOMA-IR: 0.29	Unadjusted	Healthy	8/10
Liang 2015 [11]	CRC/China	M: 1008	18–93	Asian	37.7 ± 2.49	Random	Pearson	FBG: 0.054	Age	Healthy	9/10
Liang 2015 [11]	CRC/China	F: 701			32.7 ± 2.30			FBG: 0.161	Age	Healthy	9/10
Li 2015 [31]	SPECT/China	M: 744	50.1 ± 14.09 (18–89)	Asian	34.5 ± 2.15	Random	Pearson	FBG: 0.06 Insulin: 0.11 HOMA-IR: 0.12 HbA1c: 0.11	Age	Healthy	9/10
Li 2015 [31]	SPECT/China	F: 1924			31.0 ± 2.22			FBG: 0.10 Insulin: 0.09 HOMA-IR: 0.17 HbA1c: 0.06	Age	Healthy	9/10
Baena 2016 [15]	ELSA/Brazil	M: 3810	62.4 ± 7.1 (35–74)	Spanish	38.9 ± 2.6	Random	Pearson	FBG: 0.193 Insulin: 0.415 HOMA-IR: 0.443	Age	Healthy	9/10
Baena 2016 [15]	ELSA/Brazil	F: 4916			33.0 ± 2.6			FBG: 0.218 Insulin: 0.337 HOMA-IR: 0.400	Age	Healthy	9/10
Joshipura 2016 [12]	SOALS/USA	M: 329/F: 877	45–65	NR	(42.0 ± 4.8) (36.1 ± 2.9)	Random	Pearson	FBG: 0.10 HOMA-IR: 0.45 HbA1c: 0.28	Age, gender, smoking status & physical activity	Overweight or obese	10/10
Selvan 2016 [32]	–/India	M: 258	30–80	Asian	35.5 ± 17.0	Non-random	Pearson	FBG: 0.025 HbA1c: 0.024	Age	Healthy	9/10
		F: 193			32.0 ± 19.0
		F: 193			32.0 ± 19.0			FBG: 0.221 HbA1c: 0.144
Assyov 2017 [35]	–/Bulgaria	M: 102	49 ± 12 (45–70)	White	41.0 ± 4.0	Non-random	Pearson	FBG: 0.338 Insulin: 0.465 HOMA-IR: 0.385 HbA1c: 0.215	Age	Healthy	9/10
Assyov 2017 [35]	–/Bulgaria	F: 153			38.0 ± 3.0			FBG: 0.485 Insulin: 0.318 HOMA-IR: 0.369 HbA1c: 0.183	Age	Healthy	9/10
Jiang 2017 [33]	–/China	M: 3369	≥ 40 60.0 ± 7.8	Asian	38.2 ± 2.63	Random	Pearson	FBG: 0.11 HbA1c: 0.01	Unadjusted	Healthy	8/10
Jiang 2017 [33]	–/China	F: 5062			33.9 ± 2.45			FBG: 0.19 HbA1c: 0.03	Unadjusted	Healthy	8/10
Zhong 2017 [9]	–/China	M: 965	≥ 65 37.21 ± 6.72	Asian	37.8 ± 2.80	Consecutive	Spearman	FBG: 0.195	Unadjusted	Elders/healthy	8/10
Zhong 2017 [9]	–/China	F: 1109			34.4 ± 2.75			FBG: 0.194	Unadjusted	Elders/healthy	8/10

NC neck circumference, WC waist circumference, HC hip circumference, NR not reported, M male, F female, FBG fasting blood glucose, HOMA-IR homeostatic model assessment of insulin resistance, HbA1c hemoglobin A1c, SD standard deviation
^aBased on Newcastle–Ottawa quality assessment scale (adapted for cross sectional studies) [23]

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ISSN: 1758-5996

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