Association of Serum Magnesium Levels with Frequency of Acute Exacerbations in Chronic Obstructive Pulmonary Disease: A Prospective Study
Table 3
Comparison of variables between groups established on the basis of number of exacerbations.
COPD-AE ≤ 2/year (: 43)
COPD-AE ≥ 3/year (: 46)
value
Age, years (mean ± sd)
72 ± 8
69 ± 7
0.181
Sex, (M/F)
43/0
45/1
1.000
BMI, body mass index
25.6 ± 3.7
24.2 ± 4.5
0.301
Smoking, pack-year
65 ± 34
63 ± 35
0.815
FEV1, % of predicted
45 ± 16
34 ± 10
FVC, % of predicted
58 ± 19
51 ± 12
pH
7.39 ± 0.06
7.40 ± 0.05
0.262
PaO2, mmHg
58 ± 10
57 ± 10
0.740
PaCO2, mmHg
42 ± 8
42 ± 11
0.711
Hb, gr/dL
14.2 ± 2.3
14.3 ± 1.7
0.961
Glucose, mg/dL
133 ± 47
106 ± 53
Platelet, ×103
243 ± 65
280 ± 88
Urea, mg/dL
44 ± 17
46 ± 19
0.582
Creatinine, mg/dL
1.03 ± 0.31
0.86 ± 0.23
Uric acid, mg/dL
6.5 ± 1.6
5.7 ± 1.7
0.021
Magnesium, mg/dL
1.88 ± 0.26
2.27 ± 0.37
Protein, g/dL
7.3 ± 0.7
6.9 ± 0.8
Albumin, g/dL
3.8 ± 0.5
3.7 ± 0.4
0.659
Globülin, g/dL
3.6 ± 0.6
3.1 ± 0.7
TSH, IU/mL
0.75 ± 1.28
0.69 ± 0.73
0.078
: the number of patients; M: male; F: female; FEV1: expiratory volume percent at the first second of forced vital capacity over expected value; PaO2: arterial partial oxygen pressure; PaCO2: arterial partial carbon dioxide pressure. Statistically significant.
