Skip to main content

Table 1 Baseline characteristics

From: Respiratory-related death in individuals with incident asthma and COPD: a competing risk analysis

Characteristic

Asthma

Std. Diff

COPD

Std. Diff

ACO

Yes

No

Yes

No

(N = 65,012)

(N = 324,885)

(N = 45,649)

(N = 228,076)

(N = 22,145)

Sex (N, %)

       

Male

25,977 (40)

129,793 (40)

0.00

25,377 (56)

126,775 (56)

0.00

10,205 (46)

Female

39,035 (60)

195,092 (60)

 

20,272 (44)

101,301 (44)

 

11,940 (54)

Age at inclusion/diagnosis (mean, SD)

50.4 ± 18.2

50.4 ± 18.2

0.00

67.8 ± 11.5

67.8 ± 11.4

0.00

65.5 ± 12.1

Age at inclusion/diagnosis (N, %)

       

18–44

26,434 (41)

132,105 (41)

0.00

1262 (3)

6307 (3)

0.00

1126 (5)

45–64

22,411 (35)

112,044 (35)

 

16,207 (36)

81,036 (36)

 

8890 (40)

65–84

14,481 (22)

72,385 (22)

 

25,185 (55)

125,911 (55)

 

11,003 (50)

> 85

1686 (3)

8351 (3)

 

2995 (7)

14,822 (7)

 

1126 (5)

Follow up time, years (Median (IQR))

3.0 (2.3–5.6)

4.0 (1.9–6.9)

 

3.8 (1.8–6.4)

3.9 (1.8–6.5)

 

3.8 (2.1–6.3)

Total person years

259,700

1,460,056

 

193,309

994,000

 

96,038

Smoking status (N, %)

       

Never smoker

25,803 (40)

160,793 (50)

0.27

3,859 (9)

101,784 (45)

0.99

4373 (20)

Current

12,469 (19)

66,252 (20)

 

18,298 (40)

31,493 (14)

 

6912 (31)

Former smoker

22,374 (34)

88,313 (27)

 

21,560 (47)

90,698 (40)

 

10,860 (49)

Not recorded

4366 (7)

9527 (3)

 

1932 (4)

4101 (2)

 

0 (0)

BMI (kg/m2)

       

Underweight (< 18.5)

1167 (2)

7406 (2)

0.22

2023 (4)

3084 (1)

0.22

552 (2)

Normal weight (18.5–24.9)

17,747 (27)

109,319 (34)

 

14,393 (32)

65,811 (29)

 

5996 (27)

Overweight (25–29.9)

20,119 (31)

97,373 (30)

 

14,030 (31)

84,417 (37)

 

7133 (32)

Obese (30 +)

19,736 (30)

71,499 (22)

 

12,264 (27)

57,943 (25)

 

2158 (10)

Missing

6243 (10)

39,288 (12)

 

2939 (6)

16,821 (7)

 

0 (0)

IMD (N, %)

       

1 (least deprived)

13,583 (21)

73,699 (23)

0.06

7125 (16)

48,593 (21)

0.22

3565 (16)

2

13,837 (21)

70,574 (22)

 

8765 (19)

50,683 (22)

 

4325 (20)

3

13,224 (20)

67,034 (21)

 

9181 (20)

47,146 (21)

 

4450 (20)

4

12,550 (19)

60,676 (19)

 

10,006 (22)

42,979 (19)

 

4733 (21)

5 (most deprived)

11,765 (18)

52,574 (16)

 

10,524 (23)

38,476 (17)

 

5059 (23)

Missing

53 (0)

328 (0)

 

48 (0)

199 (0)

 

0 (0)

CCI (N, %)

       

0

0 (0)

227,852 (70)

2.29

0 (0)

117,111 (51)

1.51

0 (0)

1

50,226 (77)

51,073 (16)

 

23,765 (52)

41,445 (18)

 

12,349 (56)

2

5637(9)

24,022 (7)

 

7457 (16)

31,724 (14)

 

3581 (16)

3

4712 (7)

11,531 (4)

 

6367 (14)

18,351 (8)

 

2954 (13)

4

2267 (4)

4993 (2)

 

3688 (8)

8912 (4)

 

1594 (7)

≥ 5

2170 (3)

5414 (2)

 

4372 (10)

10,533 (5)

 

1667 (8)

  1. ACO: concomitant asthma and COPD, Std. Diff: Standardised Difference, SD: Standard Deviation, IQR: Interquartile Range, BMI: Body Mass Index, IMD: Index of Multiple Deprivation, CCI: Charlson Comorbidity Index