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Table 2 Demographic, comorbidities and lung function of patients with well-controlled, partially controlled and uncontrolled asthma

From: Asthma control in Kazakhstan: need for urgent action

Variable

Total

Well controlled

Partly controlled

Uncontrolled

N (%)

600 (100)

74 (12)

179 (30)

347 (58)

Age

54 (22)

50 (29.5)

55 (25)

55 (21)

Years of asthma

9 (13)

7 (10.5)

9 (12)

10 (14.3)

BMI, kg/m2

27.6 (7.3)*

26.4 (6.7)

27.3 ± 4.9

27.8 (7.2)

Females, N (%)

387 (64)

45 (61)

116 (65)

226 (65)

ACQ-5 score

2 (1.8)*

0.2 (0.9)

1.4 (1)

2.8 (1.4)

University or academic degree, N (%)

212 (35)*

25 (34)

84 (47)

102 (29)

Comorbid COPD, N (%)

241 (40)*

17 (23)

67 (37)

157 (45)

Comorbid rhinitis, N (%)

250 (42)

31 (42)

74 (41)

145 (42)

FEV1, % predicted

76 (34.5)*

84.7 ± 14.6

83 (28)

67 (36.3)

FVC, % predicted

85 (27)*

90.0 ± 15.2

91 (23)

78 (26)

FEV1/FVC, %

73 (18)*

79 (9)

75 (14)

68.5 (20.5)

  1. BMI Body mass index; COPD Chronic obstructive pulmonary disease; FEV1 Forced expiratory volume in 1 s; FVC Forced vital capacity; means are shown either as medians (interquartile range) or means ± standard deviation
  2. *p < 0.05 in a three-group comparison either from Kruskall–Wallis test (continuous data) or from 2*3 χ2 test (binary data)