Table 2 Baseline characteristics of the 89 participants analysed, The Regular Exercise and Asthma Control Trial [REACT].

From: Regular exercise improves asthma control in adults: A randomized controlled trial

Total Intervention group Reference group Difference between the groups
Analysed Analysed
N = 44 N = 45 Test statistic, P-value
Age, Mean (SD) 39.7 (14.06) 32.9 (10.72) t value = −2.56, 0.012
Age group
   18–29 12 (27.3) 23 (51.1) Chi-square (d.f. = 2) = 7.5521
0.023
   30–49 20 (45.5) 18 (40.0)
   50+ 12 (27.3) 4 (8.9)
Gender
   Men 8 (18.2) 11 (24.4) Chi-square (d.f. = 1) = 0.5197
0.471
   Women 36 (81.8) 34 (75.6)
Smoking
   Never 34 (77.3) 32 (73.8) Chi-square (d.f. = 2) = 0.8677
0.648
   Ex 4 (9.1) 7 (15.6)
   Current 6 (13.6) 6 (13.3)
BMI, Mean (SD) 24.97 (3.81) 24.95 (4.54) t value = −0.02, 0.983
   −18 1 (2.3) 0 (0.0) Chi-square (d.f. = 3) = 1.1875
0.756
   18–25 26 (59.1) 28 (62.2)
   25–30 10 (22.7) 11 (24.4)
   30− 7 (15.9) 6 (13.3)
6-min step test, Mean, SD 200.3 (40.19) 202.5 (40.12) t value = 0.25, 0.801
Regular exercise h per week, Mean, SD 3.99 (3.16) 3.33 (3.69) t value = −0.91, 0.367
ACT, Median, 25,75% 21 [18, 22] 22 [19, 23] Wilcoxon S = 1785.0, 0.107
   20–25 29 (65.9) 33 (73.3) Chi-square (d.f. = 1) = 0.394
0.5302
   5–19 15 (34.1) 12 (26.7)
Shortness of breath weekly 26 (59.1) 22 (48.9) Chi-square (d.f. = 1) = 0.9320
0.334
Shortness of breath less than weekly 18 (40.9) 23 (51.1)
Wheezing weekly 17 (39.5) 10 (22.2) Chi-square (d.f. = 1) = 3.0988
0.078
Wheezing less than weekly 26 (60.5) 35 (77.8)
Phlegm weekly 25 (58.1) 13 (28.9) Chi-square (d.f. = 1) = 7.6680
0.006
Phlegm less than weekly 18 (41.9) 32 (71.1)
Coughing weekly 16 (37.2) 15 (33.3) Chi-square (d.f. = 1) = 0.1448
0.704
Coughing less than weekly 27 (62.8) 30 (66.7)
PEF % predicted 104.92 (16.94) 108.53 (17.14) F-test value = 1.00, 0.321
FEV1% predicted 92.27 (9.93) 94.53 (12.59) F-test value = 0.88, 0.351
FVC % predicted 99.50 (8.13) 101.84 (12.77) F-test value = 1.06, 0.306
FEV1/FVC % predicted 92.97 (9.21) 93.03 (7.31) F-test value = 0.00, 0.969
Short-acting bronchodilator
   Regularly 4 (9.1) 1 (2.2)  
   If needed 35 (79.6) 36 (80.0) Chi-square (d.f. = 2) = 2.50,
   Not at all 5 (11.4) 8 (17.8) 0.287
Inhaled steroid
   Regularly 24 (54.5) 26 (57.8)  
   If needed 5 (11.4) 5 (11.1)  
   Not at all 14 (31.8) 14 (31.1) Chi-square (d.f. = 2) = 0.03,
   Missing 1 (2.3) 0 (0.0) 0.983
Oral steroids
   Regularly 0 0 (0.0)  
   If needed 6 (13.6) 12 (26.7) Chi-square (d.f. = 1) = 2.18,
   Not at all 37 (84.1) 33 (73.3) 0.139
   Missing 1 (2.3) 0 (0.0)