Association of bone mineral density with lung function in a Chinese general population: the Xinxiang rural cohort study

Table 2 Levels of blood, bone density and lung function parameters in adult population from Qiliying and Langgongmiao in Xinxiang (n = 1024)

Characteristics	Exposure region (n = 611)	Reference region (n = 413)	P-value
Lung function parameters
FVC (L)	3.12 ± 0.63	3.30 ± 0.78	0.000^a
FEV₁ (L)	2.64 ± 0.57	2.72 ± 0.61	0.044^a
FEV₁ / FVC (%)	0.84 (0.80, 0.88)	0.83 (0.81, 0.85)	0.000^b
Bone density parameters
Bone Mineral Density (BMD)	0.484 ± 0.06	0.488 ± 0.06	0.324^a
BMD T-scores	−0.029 ± 0.896	− 0.049 ± 1.003	0.730^a
BMD Z-scores	0.899 ± 1.212	0.919 ± 1.327	0.803^a
Blood parameters
Red blood cell count, n (10¹²/L)	4.82 ± 0.47	4.88 ± 0.47	0.068^a
White blood cell count, n (10⁹/L)	6.01 ± 1.50	6.05 ± 1.47	0.728^a
Hemoglobin (g/L)	142.98 ± 17.43	142.69 ± 16.84	0.791^a
MCH	29.65 ± 2.27	29.26 ± 2.19	0.007^a
MCHC	322.70 ± 15.47	318.00 ± 17.74	0.000 ^a
Hematocrit (%)	44.27 ± 4.76	44.86 ± 4.67	0.049 ^b
Platelet count (10⁹/L)	239.19 ± 58.61	252.28 ± 64.05	0.001 ^a
Thrombocytocrit (%)	0.26 (0.22, 0.30)	0.28 (0.23, 0.32)	0.001^b
RDW-SD (fL)	13.10 (12.70, 13.60)	13.20 (12.80, 13.80)	0.178^c
RDW-CV (%)	43.0 (41.0, 45.0)	43.0 (41.0, 46.0)	0.043^b

Exposure region: Qiliying; Reference region: Langgongmiao. Abbreviation, FVC: forced vital capacity; FEV₁: forced expiratory volume in 1 s; BMD: Bone Mineral Density; BMI: body mass index; MCH: mean corpuscular hemoglobin; MCHC: mean corpuscular hemoglobin concentration; RDW: red blood cell distribution width. ^#: 0.05 < p < 0.10; ^*: p < 0.05, ^**: p < 0.01

ISSN: 1471-2466