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Table 1 Sociodemographic and asthma characteristics according to investigator-classified asthma severity and practice type

From: Over-prescription of short-acting β2-agonists remains a serious health concern in Kenya: results from the SABINA III study

Sociodemographic and asthma characteristics

All

(N = 405)

Primary care (n = 222)

Specialist care (n = 183)

Mild asthma (n = 208)

Moderate-to-severe asthma (n = 14)

All (n = 222)

Mild asthma (n = 100)

Moderate-to-severe asthma

(n = 83)

All (n = 183)

Sociodemographic characteristics

Age (years), mean (SD)

44.4 (14.0)

44.1 (13.6)

48.0 (9.5)

44.3 (13.4)

44.4 (14.5)

44.6 (14.9)

44.5 (14.7)

Age groups

 12–17 years

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

 ≥ 18–54 years

309 (76.3)

163 (78.4)

12 (85.7)

175 (78.8)

72 (72)

62 (74.7)

134 (73.2)

 ≥ 55 years

96 (23.7)

45 (21.6)

2 (14.3)

47 (21.2)

28 (28)

21 (25.3)

49 (26.8)

 Total

405

208

14

222

100

83

183

Sex (female)

279 (68.9)

146 (70.2)

10 (71.4)

156 (70.3)

66 (66)

57 (68.7)

123 (67.2)

BMI (kg/m2)

 Mean (SD)

26.2 (5.1)

26.2 (5.1)

27.3 (7.1)

26.3 (5.3)

26.4 (5.0)

25.8 (4.6)

26.1 (4.8)

 Median (min, max)

25.9 (16.3, 42.5)

25.9 (16.3, 42.5)

25.6 (18.0, 40.9)

25.9 (16.3, 42.5)

26.2 (16.9, 42.5)

25.7 (16.3, 41.8)

26.0 (16.3, 42.5)

BMI group (kg/m2)

 < 18.5

22 (5.4)

9 (4.3)

1 (7.1)

10 (4.5)

6 (6)

6 (7.2)

12 (6.6)

 ≥ 18.5–24.9

152 (37.5)

83 (39.9)

6 (42.9)

89 (40.1)

34 (34)

29 (34.9)

63 (34.4)

 ≥ 25–29.9

150 (37)

72 (34.6)

2 (14.3)

74 (33.3)

42 (42)

34 (41)

76 (41.5)

 ≥ 30

81 (20)

44 (21.2)

5 (35.7)

49 (22.1)

18 (18)

14 (16.9)

32 (17.5)

Smoking status history

 Active smoker

4 (1)

3 (1.4)

1 (7.1)

4 (1.8)

0 (0)

0 (0)

0 (0)

 Former smoker

45 (11.1)

24 (11.5)

2 (14.3)

26 (11.7)

12 (12)

7 (8.4)

19 (10.4)

 Nonsmoker

356 (87.9)

181 (87)

11 (78.6)

192 (86.5)

88 (88)

76 (91.6)

164 (89.6)

Number of comorbidities

 0

300 (74.1)

149 (71.6)

11 (78.6)

160 (72.1)

82 (82)

58 (69.9)

140 (76.5)

 1–2

101 (24.9)

57 (27.4)

3 (21.4)

60 (27)

18 (18)

23 (27.7)

41 (22.4)

 3–4

3 (0.7)

2 (1)

0 (0)

2 (0.9)

0 (0)

1 (1.2)

1 (0.5)

 ≥ 5

1 (0.2)

0 (0)

0 (0)

0 (0)

0 (0)

1 (1.2)

1 (0.5)

Education level

 Primary school

154 (38)

99 (47.6)

4 (28.6)

103 (46.4)

26 (26)

25 (30.1)

51 (27.9)

 Secondary school

84 (20.7)

52 (25)

1 (7.1)

53 (23.9)

19 (19)

12 (14.5)

31 (16.9)

 High school

79 (19.5)

35 (16.8)

4 (28.6)

39 (17.6)

27 (27)

13 (15.7)

40 (21.9)

 University and/or postgraduate education

81 (20)

17 (8.2)

5 (35.7)

22 (9.9)

26 (26)

33 (39.8)

59 (32.2)

 Unknown

7 (1.7)

5 (2.4)

0 (0)

5 (2.3)

2 (2)

0 (0)

2 (1.1)

Healthcare insurance/medication funding

 Not reimbursed

239 (59)

131 (63)

8 (57.1)

139 (62.6)

63 (63)

37 (44.6)

100 (54.6)

 Partially reimbursed

83 (20.5)

66 (31.7)

0 (0)

66 (29.7)

11 (11)

6 (7.2)

17 (9.3)

 Fully reimbursed

79 (19.5)

11 (5.3)

6 (42.9)

17 (7.7)

22 (22)

40 (48.2)

62 (33.9)

 Unknown

4 (1)

0 (0)

0 (0)

0 (0)

4 (4)

0 (0)

4 (2.2)

Asthma characteristics

Asthma duration (years)

  Mean (SD)

13.5 (11.4)

13.9 (11.2)

22.2 (14.6)

14.4 (11.6)

13.0 (11.8)

11.7 (10.0)

12.4 (11.0)

  Median (min, max)

10.0 (1.0, 58.0)

11.0 (1.0, 58.0)

19.5 (4.0, 52.0)

11.0 (1.0, 58.0)

9.5 (1.0, 50.0)

8.0 (1.0, 47.0)

9.0 (1.0 50.0)

Number of severe asthma exacerbations 12 months before the study visit

  Mean (SD)

2.1 (3.8)

2.3 (4.8)

1.6 (1.3)

2.2 (4.6)

2.0 (1.7)

2.0 (3.3)

2.0 (2.6)

  Median (min, max)

1.0 (0.0, 36.0)

1.0 (0.0, 36.0)

1.5 (0.0, 4.0)

1.0 (0.0, 36.0)

2.0 (0.0, 10.0)

1.0 (0.0, 20.0)

1.0 (0.0, 20.0)

Number of severe asthma exacerbations 12 months before the study visit

  0

156 (38.5)

89 (42.8)

4 (28.6)

93 (41.9)

25 (25)

38 (45.8)

63 (34.4)

  1

71 (17.5)

39 (18.8)

3 (21.4)

42 (18.9)

16 (16)

13 (15.7)

29 (15.8)

  2

66 (16.3)

29 (13.9)

3 (21.4)

32 (14.4)

24 (24)

10 (12)

34 (18.6)

  ≥ 3

112 (27.7)

51 (24.5)

4 (28.6)

55 (24.8)

35 (35)

22 (26.5)

57 (31.1)

GINA classification

 Step 1

71 (17.5)

41 (19.7)

0 (0)

41 (18.5)

30 (30)

0 (0)

30 (16.4)

 Step 2

237 (58.5)

167 (80.3)

0 (0)

167 (75.2)

70 (70)

0 (0)

70 (38.3)

 Step 3

70 (17.3)

0 (0)

8 (57.1)

8 (3.6)

0 (0)

62 (74.7)

62 (33.9)

 Step 4

27 (6.7)

0 (0)

6 (42.9)

6 (2.7)

0 (0)

21 (25.3)

21 (11.5)

 Step 5

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

Level of asthma symptom control

 Well controlled

89 (22)

44 (21.2)

4 (28.6)

48 (21.6)

11 (11)

30 (36.1)

41 (22.4)

 Partly controlled

187 (46.2)

88 (42.3)

5 (35.7)

93 (41.9)

62 (62)

32 (38.6)

94 (51.4)

 Uncontrolled

129 (31.9)

76 (36.5)

5 (35.7)

81 (36.5)

27 (27)

21 (25.3)

48 (26.2)

  1. Data are presented as n (%) unless otherwise specified
  2. BMI Body mass index, GINA Global Initiative for Asthma, max Maximum, min Minimum, SD Standard deviation