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Table 2 Baseline characteristics of the study participants and characteristics by vital status after three years of follow up

From: BODE-Index vs HADO-Score in Chronic Obstructive Pulmonary Disease: Which one to use in general practice?

 

All Patients

(n = 543)

Alive

(n = 472)

Dead

(n = 71)

P-Value

Age, yr

68.3 ± 8.3

67.8 ± 8.4

72.1 ± 6.5

<.001

Men

522 (96.1%)

452 (95.76%)

70 (98.59%)

0.34

FEV1, L

1.46 ± 0.44 L

1.50 ± 0.44

1.20 ± 0.36

<.001

FEV1%

55.0 ± 13.3

55.9 ± 13

49 ± 14

<.001

FEV1/VC

54.5 ± 9.32

54.7 ± 9.2

53.1 ± 10.5

0.16

Dyspnea scale

   

<.001

   1

69 (12.7%)

62 (13.1%)

7 (9.9%)

 

   2

264 (48.6%)

245 (51.9%)

19 (26.8%)

 

   3

166 (30.6%)

136 (28.8%)

30 (42.3%)

 

   4-5

44 (8.1%)

29 (6.1%)

15 (21.1%)

 

Distance walked in six minutes (m)

408.9 ± 92.4

420.1 ± 86.5

334 ± 96.6

<.001

Charlson index

2.4 ± 1.4

2.3 ± 1.3

3.3 ± 1.6

<.001

BMI

28.3 ± 4.4

28.4 ± 4.4

27.4 ± 4.8

0.09

Smoking habit

   

0.84

   Current smokers

114 (20.9%)

101 (24.1%)

13 (18.3%)

 

   Ex-smokers

414 (76.2%)

358 (75.8%)

56 (78.9%)

 

   Never smoked

15 (2.8%)

13 (2.7%)

2 (2.8%)

 

   Mean pack/year, SD

48.2 ± 26.5

47.7 ± 26.3

51.1 ± 28

0.32

BODE index

2.8 ± 1.8

2.6 ± 1.6

4.2 ± 1.9

<.001

HADO score

6.8 ± 2.1

7 ± 2

5.6 ± 2.1

<.001

Previous admissions

   

<.001

0

402 (74%)

370 (78.4%)

32 (45.1%)

 

1

88 (16.2%)

65 (13.8%)

23 (32.4%)

 

≥2

53 (9.8%)

37 (7.8%)

16 (22.5%)

 

Distance walked in 6 min (m)

   

<0.001

   ≤ 149

5 (0.92%)

4 (0.85%)

1 (1.41%)

 

   150 to 249

27 (4.97%)

14 (2.97%)

13 (18.31%)

 

   250 to 349

91 (16.76%)

66 (13.98%)

25 (35.21%)

 

   ≥ 350

420 (77.35%)

388 (82.20%)

32 (45.07%)

 

Physical activity

   

<0.001

   0

28 (5.16%)

17 (3.60)

11 (15.49)

 

   1

54 (9.94%)

45 (9.53%)

9 (12.68%)

 

   2

365 (67.22%)

315 (66.74%)

50 (70.42%)

 

   3

96 (17.68%)

95 (20.13%)

1 (1.41%)

 

General Health

   

<0.001

   Bad

52 (9.58%)

45 (9.53%)

7 (9.86%)

 

   Fair

293 (53.96%)

256 (54.24%)

37 (52.11%)

 

   Good

178 (32.78%)

151 (31.99%)

27 (38.03%)

 

   Excellent to Very good

20 (3.68%)

20 (4.24%)

0 (0%)

 

FEV1%

   

<0.001

   ≤ 35

45 (8.29%)

31 (6.57%)

14 (19.72%)

 

   36 to 50

140 (25.78%)

119 (25.21%)

21 (29.58%)

 

   51 to 64

217 (39.96%)

189 (40.04%)

28 (39.44%)

 

   ≥ 65

141 (25.97%)

133 (28.18%)

8 (11.27%)

 

BMI

   

0.02

   ≤ 21

28 (5.16%)

20 (4.24%)

8 (11.27%)

 

   >21

515 (94.84%)

452 (95.76%)

63 (88.73%)

 
  1. Data are presented as mean ± SD or number (%)
  2. FEV1% = % FEV1 of predicted value.
  3. Dyspnea from Fletcher 12
  4. BMI: Body mass index.
  5. Physical Activity: 0) 'doesn't leave the house, life is limited to the bed or armchair, or to doing some domestic chores', or 'leaves the house, but walks less than 100 meters'; 1) 'leaves the house and walks a few hundred meters, runs errands, but does not walk regularly'; 2) 'engages in physical activity in the vegetable garden', or 'takes walks for up to 8 kms, no less than five days a week'; and 3) 'takes walks regularly for longer than 8 kms, no less than five days a week', or 'practices sports'.