Bone mineral density and vitamin D levels in patients with group a COPD

Figures & data

Table 1. mMRC: Modified Medical Research Council Dyspnea Scale.

mMRC 0: Dyspnea only with strenuous exercise

mMRC 1: Dyspnea when hurrying or walking up slight hill

mMRC 2: Walks slower than people of the same age because of dyspnea or has to stop for breath when walking at own pace

mMRC 3: Stops for breath after walking 100yards(91 m) or after a few minutes

mMRC 4: To dyspneic to leave house or breathless when dressing

Table 2. Demographic and clinical characteristics of COPD patients.

Characteristic	n	%	Mean ± SD
Age			55.64 ± 6.65
Gender (male/female)	33/0	100/0
Smoking (pack-year)			35 ± 12.5
Occupation
Worker	18	56
Public Servant	5	14
Retired	8	25
Self-employed	2	5
COPD duration (year)			1.2 ± 0.6
BMI (kg/m^2)			28.71 ± 5.36
Normal	10	30.3
Overweight	9	27.3
Obese	14	42.4
FEV1 (%)			81.4 ± 1.5
FEV1 (mL)			2659 ± 377
FVC (%)			103 ± 6.2
FVC (mL)			3960 ± 588
History of fracture
Yes	2	5
No	31	95

COPD: chronic obstructive pulmonary disease; BMI: body mass index; FVC: forced vital capacity; FEV1: forced vital capacity in the first second.

Table 3. Serum vitamin D levels of the patient and control groups.

	COPD		Control
Vitamin D Levels	n	%	n	%
Deficiency (20 ng/L)	29	89	27	61.3
Insufficiency(21–29 ng/L)	3	9	5	11.4
Normal (30 ng/L< )	1	2	12	27.3

Table 4. The BMDs of the patient group stratified based on T scores.

	n	%
Lumbar (L1–L4) T Score
Normal	16	48.5
Osteopenia	15	45.5
Osteoporosis	2	6.0
Hip Femur Total T Score
Normal	19	57.6
Osteopenia	14	42.4
Osteoporosis	–	–