Table 1.

General characteristics of included studies

First author	Year	Country	Design	Osteopenia		Osteoporosis		Normal BMD		NOS score
				N	NLR	N	NLR	N	NLR
Yilmaz [24]	2014	Turkey	Prospective	152	3.17 ± 0.43	151	4.68 ± 0.72	135	2.10 ± 0.54	8
Liu [23]	2015	China	Prospective	141	3.00 ± 0.98			128	2.10 ± 0.77	8
Yu [25]	2015	China	Prospective			204	2.53 ± 0.65	208	2.09 ± 1.17	7
Huang [20]	2016	China	Prospective	60	2.55 ± 1.15	112	2.74 ± 1.06	51	2.12 ± 0.89	6
Eroglu [19]	2019	Turkey	Retrospective	112	2.28 ± 0.96	48	3.28 ± 1.81	92	2.58 ± 1.12	6
Kale [22]	2021	Turkey	Retrospective	103	1.67 ± 0.63	48	1.91 ± 0.74	26	1.47 ± 0.41	6
Salmani [18]	2021	Oman	Retrospective	164	1.17 ± 0.95	221	1.19 ± 1.05	65	1.22 ± 0.64	7
Huifang [21]	2022	China	Retrospective	78	2.06 ± 0.61	87	2.52 ± 0.82	51	1.81 ± 0.49	6

NLR: Neutrophil to lymphocyte ratio; NOS: Newcastle-Ottawa scale; BMD: Bone mineral density