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Table 1 Comparison between the two studied groups according to different parameters

From: Significance of peak oxygen pulse in patients with chronic obstructive pulmonary disease

 

Total

(n = 50)

Group I

(n = 16)

Group II

(n = 34)

Test of Sig

p

Sex

 Male

49 (98%)

16 (100%)

33 (97%)

χ2 = 0.480

FEp = 1.000

 Female

1 (2%)

0 (0%)

1 (3%)

Age (/years)

 Mean ± SD

57.0 ± 9.10

54.63 ± 8.61

58.12 ± 9.24

t = 1.274

0.209

 Median (Min. – Max.)

59.50(31.0 – 75.0)

54.0(43.0 – 75.0)

60.0(31.0 – 74.0)

BH (cm)

 Mean ± SD

168.0 ± 6.32

168.4 ± 7.96

167.8 ± 5.52

t = 0.348

0.729

 Median (Min. – Max.)

169.5(152.0–183.0)

170.5(152.0–183.0)

167.0(155.0–180.0)

BW (kg)

 Mean ± SD

75.42 ± 15.18

86.50 ± 14.39

70.21 ± 12.68

t = 4.060*

 < 0.001*

 Median (Min. – Max.)

74.0(50.0 – 115.0)

85.0(60.0 – 115.0)

68.50(50.0 – 100.0)

BMI (kg/m2)

 Mean ± SD

26.92 ± 5.33

30.53 ± 5.17

25.22 ± 4.55

t = 3.902*

 < 0.001*

 Median (Min. – Max.)

25.85(16.5 – 38.95)

30.20(24.3 – 38.95)

24.65(16.5 – 38.29)

Hemoglobin

 Mean ± SD

12.67 ± 1.27

12.78 ± 1.18

12.63 ± 1.32

t = 0.383

0.703

 Median (Min. – Max.)

12.50(10.50–15.20)

12.65(11.0–15.10)

12.50(10.50–15.20)

Gold

 I

7 (14%)

5 (31%)

2 (6%)

χ2 = 9.906*

MCp = 0.014*

 II

11 (22%)

4 (25%)

7 (21%)

 III

22 (44%)

7 (44%)

15 (44%)

 IV

10 (20%)

0 (0%)

10 (29%)

ABCD assessment

 A

2 (4%)

2 (13%)

0 (0%)

χ2 = 19.845*

MCp < 0.001*

 B

12 (24%)

9 (56%)

3 (9%)

 C

18 (36%)

4 (25%)

14 (41%)

 D

18 (36%)

1 (6%)

17 (50%)

Smoking

 Current smoker

36 (72%)

12 (75%)

24 (71%)

χ2 = 0.105

FEp = 

1.000

 Ex–smoker

14 (28%)

4 (25%)

10 (29%)

  1. SD Standard deviation, t Student t-test, χ2 Chi square test, FE Fisher Exact, MC Monte Carlo, p p value for comparing between the two studied groups
  2. *Statistically significant at p ≤ 0.05
  3. Group I: Normal Peak O2 pulse
  4. Group II: Low Peak O2 pulse