. 2016 Sep 1;31(5):899–909. doi: 10.3904/kjim.2015.127

Table 4.

Correlation coefficients between clinical characteristics, biochemical characteristics, and bone mineral density

Characteristic	Male (n = 2,100)			Female (n = 2,401)
Characteristic	Femur neck BMD	Total femur BMD	Lumbar spine BMD	Femur neck BMD	Total femur BMD	Lumbar spine BMD
Age, yr	–0.34^a	–0.31^a	–0.09^a	–0.53^a	–0.50^a	–0.36^a
Body mass index, kg/m²	0.36^a	0.42^a	0.33^a	0.21^a	0.26^a	0.24^a
Total FFMI, kg/m²	0.41^a	0.47^b	0.31^b	0.22^a	0.27^a	0.21^a
Body fat, %	0.06^b	0.08^b	0.15^b	0.09^a	0.11^a	0.14^a
Smoking amount, pack-yr	–0.05^b	–0.07^b	–0.05^b	–0.09^a	–0.09^a	–0.05^b
PTH, mg/mL	–0.06^b	–0.07^b	–0.03	–0.08^a	–0.08^a	0.00
25(OH)D, ng/mL	0.01	0.01	–0.01	–0.01	–0.01	–0.02
Ca intake, mg/dL	0.21^a	0.17^a	0.11^a	0.10^a	0.11^a	0.09^a
P intake, mg/dL	0.22^a	0.19^a	0.09^a	0.16^a	0.16^a	0.12^a
ALP, mg/dL	–0.20^a	–0.21^a	–0.18^a	–0.12^a	–0.14^a	–0.15^a
FVC % of predicted	0.02	0.02	–0.09^a	0.07^a	0.04^a	–0.01
FEV₁ % of predicted	0.03	0.05^b	–0.04^b	0.00	0.00	–0.04
FEV₁/FVC	0.14^a	0.15^a	0.04	0.15^a	0.17^a	0.10^a

BMD, bone mineral density; FFMI, fat free mass index; PTH, parathyroid hormone; 25(OH)D, 25-hydroxyvitamin D; ALP, alkaline phosphatase; FVC, forced vital capacity; FEV₁, forced expiratory volume in 1 second.

p < 0.001.

p < 0.05.