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Table 2 Sociodemographic and clinical factors by severe asthma status in Argentina, Chile, Colombia, and Mexico 2013–2015

From: Asthma severity in four countries of Latin America

Independent variables

Severe asthma

Non-severe asthma

p-value

Total

N

(%)

N

(%)

 

N

(%)

Gender

 Male

44

23.9

118

28.8

0.218

162

27.3

 Female

140

76.1

292

71.2

 

432

72.7

Age at the moment of medical visit (years)

 12–19

11

6.0

50

12.2

< 0.001

61

10.3

 20–29

14

7.6

64

15.6

 

78

13.1

 30–39

13

7.1

70

17.1

83

14.0

 40–49

29

15.8

83

20.2

112

18.9

 50–59

53

28.8

67

16.3

120

20.2

  ≥ 60

64

34.8

76

18.5

140

23.6

Age (years)

 

 Mean (±SD)

51.81 (±16.76)

42.36 (±18.03)

< 0.001

45.29 (±18.16)

 Median (IQR)

54 (20)

42 (28)

 

47 (28)

Age at asthma diagnosis (years)

  ≤ 9

39

21.2

112

27.3

< 0.001

151

25.4

 10–25

37

20.1

116

28.3

 

153

25.8

 26–41

42

22.8

104

25.4

146

24.6

  ≥ 42

66

35.9

78

19.0

144

24.2

Age at asthma diagnosis (years)

 Mean (±SD)

31.64 (±20.94)

24.71 (±18.27)

< 0.001

26.86 (±19.38)

 Median (IQR)

30 (38)

23 (30)

 

25 (32)

Reason for the medical visit

 Obtain prescription

2

1.1

8

2.0

0.820

10

1.7

 Routine check-up

181

98.4

398

97.1

 

579

97.5

 Other

1

0.5

4

1.0

5

0.8

Race/Ethnicitya

 

 White

103

56.3

198

48.3

< 0.001

301

50.8

 African-Latin American

34

18.6

184

44.9

 

218

36.8

 Native American

3

1.6

5

1.2

8

1.4

 Other

4

2.2

2

0.5

6

1.0

 Multiple

39

21.3

21

5.1

60

10.1

Nutritional statusb

 

 Underweight

1

0.5

13

3.2

0.005

14

2.4

 Eutrophic

50

27.3

152

37.1

 

202

34.1

 Overweight

73

39.9

154

37.7

227

38.3

 Obesity

59

32.2

90

22.0

149

25.2

Had at least one PEF test last 12 months

 Yes

66

35.9

68

16.6

< 0.001

134

22.6

 No

118

64.1

342

83.4

 

460

77.4

Had at least one spirometry last 12 months

 Yes

133

72.3

264

64.4

0.059

397

66.8

 No

51

27.7

146

35.6

 

197

33.2

  1. BMI body mass index, PEF Peak Expiratory Flow, USD US dollars, SD Standard deviation, IQR interquatile range
  2. a1 missing value
  3. b2 missings values