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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: J Asthma. 2011 Jun 2;48(6):602–608. doi: 10.3109/02770903.2011.585412

Table 3.

Mean difference in Dyspnea-12 Total scores between each BTS Management Step

BTS
Management
Step
Mean
Difference in
D-12 scores
between each
Step
Standard Error
Step 1:
Step 2 0.85 3.443
Step 3 6.22 2.851
Step 4 13.87** 3.727
Step 5 11.60** 3.443
Step 2:
Step 1 0.85 3.443
Step 3 5.36 2.914
Step 4 13.02** 3.775
Step 5 10.75* 3.495
Step 3:
Step 1 6.22 2.851
Step 2 5.36 2.914
Step 4 7.65 3.244
Step 5 5.38 2.914
Step 4:
Step 1 13.87** 3.727
Step 2 13.02** 3.775
Step 3 7.65 3.244
Step 5 2.27 3.775
Step 5:
Step 1 11.60** 3.443
Step 2 10.75* 3.495
Step 3 5.38 2.914
Step 4 2.27 3.775
*

p < 0.05

**

p < 0.01

Table 3 shows the mean difference in D-12 Total scores between each step of the BTS Management Step guidelines (BTS, 2009). The mean difference in D-12 Total score between each BTS Management Step was calculated separately.