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. 2023 Jul 25;42:71. doi: 10.1186/s41043-023-00409-y

Table 1.

Description and comparison of demographic and clinical characteristics of the patients between intervention and control groups

Variable Intervention group
Frequency (%)
n = 67
Control group
Frequency (%)
n = 66
p-value
Demographic characteristics
 Age (year) 58.83 ± 13.56 59.56 ± 13.27 0.677
 Gender
  Male 36 (49.5%) 39 (50.5%) 0.567†
  Female 31 (53.8%) 27 (46.2%)
 Past medical history
 Diabetes 36 (48.0%) 39 (52.0%) 0.549†
 Hypertension 38 (52.1%) 35 (47.9%) 0.740†
 Cardiovascular disease 18 (48.6%) 19 (51.4%) 0.790†
 Smoking
  Cigarette 8 (50.0%) 8 (50.0%) 0.961†
  Hookah 6 (50.0%) 6 (50.0%) 0.966†
Clinical parameters and Arterial Blood Gas
 O2 Sat % 86.79 ± 7.62 86.26 ± 6.64 0.352‡
 PaO2 mmHg 49.05 ± 37.49 42.63 ± 17.33 0.044‡
 PCO2 mmHg 46.67 ± 39.77 40.17 ± 10.16 0.039‡
 HCO3 mEq/L 27.0 ± 9.54 24.37 ± 5.45 0.002‡
 Ph 7.40 ± 0.08 7.39 ± 0.07 0.547‡
 Temperature 37.12 ± 0.56 36.83 ± 2.07 0.081‡
 Calcium (mg/dL) 8.57 ± 0.77 8.47 ± 0.82 0.269‡
 Phosphorus (mg/dL) 4.02 ± 0.95 3.98 ± 1.09 0.755‡
 Magnesium (mg/dL) 2.28 ± 0.27 2.25 ± 0.34 0.459‡
Liver function tests and vitamin D
 Vitamin D (ng/mL)
  Baseline 23.34 ± 18.47 23.07 ± 16.12 0.680‡
  After 1-month 34.49 ± 17.51 28.17 ± 18.60 0.008‡
 ALT (U/L)
  Baseline 36.0 (21.0–68.0) 35.0 (23.0–71.0) 0.569‡
  After 1-month 33.0 (16.0–43.0) 29.0 (18.0–46.0) 0.757‡
 AST (U/L L)
  Baseline 40.0 (26.7–63.5) 37.0 (25.0–60.0) 0.679‡
  After 1-month 21.0 (16.0–28.0) 21.0 (15.2–29.0) 0.913‡
 ALP (U/L)
  Baseline 192.0 (158.0–277.5) 182.5 (136.2–267.5) 0.264‡
  After 1-month 207.0 (172.5–249.7) 219.5 (174.7–270.7) 0.273‡
 GGT (IU/L)
  Baseline 48.0 (29.0–87.5) 45.5 (26.2–77.5) 0.401‡
  After 1-month 12.0 (8.0–19.0) 18.0 (10.0–33.0) 0.010‡
 LDH (units/L)
  Baseline 432.0 (350.0–622.0) 498.5 (359.2–632.7) 0.379‡
  After 1-month 359.0 (278.0–514.0) 340.0 (303.0–429.0) 0.833‡

The chi square test was used for the comparison

Independent sample t-test or mann–whitney test was used for the comparison

ALT: Alanine Aminotransferase, AST: Aspartate Aminotransferase, GGT: Gamma-Glutamyl Transpeptidase, ALP: Alkaline Phosphatase, LDH: Lactate dehydrogenase