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Table 1 Characteristics of study participants before and after treatment

From: Randomized trial of acupoints herbal patching in Sanfu Days for asthma in clinical remission stage

Variable Before treatment After treatment
Acupoints herbal patching mean (SD) Placebo mean (SD) P Acupoints herbal patching mean (SD) Placebo mean (SD) P
Age–year 44.28 ± 17.15 44.53 ± 17.83 0.90  
Gender—no. (%)
 Male 73 (44.24) 69 (43.67) 0.92
 Female 92 (55.76) 89 (56.32)
Duration of asthma—year 21.13 ± 21.08 22.74 ± 22.68 0.51
Asthma-related symptoms—no. of days in previous 1 yeara 10.25 ± 12.26 7.97 ± 10.94 0.08    
Asthma-related symptoms—no. of days during the treatment     2.58 ± 0.47 2.68 ± 0.48 0.88
Lung function
 FEV1 2.13 ± 1.08 2.07 ± 1.00 0.57 2.04 ± 0.41 2.12 ± 0.42 0.14
 FEV1: FVC × 100 85.97 ± 13.85 86.25 ± 13.93 0.86 87.36 ± 0.66 87.20 ± 0.67 0.87
Asthma-related health care use—no. (%)
 ≥1 admit to A&Eb 48 (29) 46 (29) 1.00 4 (3) 3 (3) 0.73
 ≥1 hospitalization 26 (16) 29 (18) 0.54 3 (2) 2 (2) 0.68
 ≥1 outpatient visit 134 (81) 134 (84) 0.39 13(12) 14 (12) 0.77
 ≥1 prescription 139 (84) 136 (86) 0.64 65 (53) 57 (48) 0.44
 ≥1 by own medication 34 (21) 24 (15) 0.21 2 (2) 2 (2) 0.97
 ≥1 didn’t need treatment 26 (16) 17 (11) 0.19 8 (7) 6 (5) 0.63
The frequency of bronchodilator during asthma attack—no. (%) 0.21 0.72
More than twice per day 37 (22) 29 (18)   13 (11) 13 (11)  
Once to twice per day 50 (30) 62 (39) 34 (28) 33 (28)
2–3 times per week 12 (7) 18 (11) 3 (2) 2 (2)
Less than once per week 48 (29) 36 (23) 13 (11) 7 (6)
Never 18 (11) 13 (8) 60 (49) 64 (54)
Symptoms which frequently appeared in asthma participants—no. of symptomsc 9.12 ± 4.28 9.22 ± 4.18 0.83 3.92 ± 0.34 4.01 ± 0.37 0.85
  1. Plus-minus value are mean ± SD. P values for the comparison of means and percentages were calculated with the use of Chi-square test for categorical variables and the independent-samples test for continuous variables. FEV1, FVC
  2. aThe number of days with symptoms was calculated as the largest of the following variables during the previous 1 month: the number of days with wheezing, cough, chest tightness, or nighttime sleep disruption. This symptom scale ranges from 0–30 days
  3. bAccident and emergency departments (A and E)
  4. cThe total number of symptoms which frequently appeared in asthma participants are 23