Table 4

Mean (SE) AQLQ scores by ethnic group at the start of the prospective study

Study protocolAQLQ startWithin group
(start vs end) difference          
Between group
(active vs control) difference
Mean (95% CI)p valueMean (95% CI)p value
All subjects (n = 522)
 OverallControl6.02 (0.06)–0.12  (–0.17  to  –0.07)<0.0010.22 (0.15 to 0.29)<0.001
Active6.01 (0.05)0.10 ( 0.05 to   0.15)<0.001  
 ActivityControl6.13 (0.06)–0.15 (–0.21 to  –0.09)<0.0010.18 (0.09 to 0.26)<0.001
Active6.21 (0.05)0.03 (–0.03 to   0.08)0.348  
 SymptomControl6.01 (0.06)–0.12 (–0.17 to  –0.06)<0.0010.25 (0.17 to 0.33)<0.001
Active5.95 (0.06)0.13 ( 0.07 to   0.19)<0.001  
 EmotionalControl5.77 (0.08)–0.03 (–0.07 to   0.02)0.3130.24 (0.15 to 0.32)<0.001
Active5.65 (0.08)0.21 ( 0.15 to   0.28)<0.001  
 ExposureControl6.08 (0.06)–0.17 (–0.23 to   0.11)<0.0010.22 (0.14 to 0.29)<0.001
Active6.09 (0.05) 0.05 ( 0.00 to   0.10)0.072  
White Europeans (n = 242)
 OverallControl6.04 (0.09)–0.08 (–0.15 to  –0.02)0.0160.17 (0.07 to 0.26)0.001
Active6.03 (0.08)0.08 ( 0.02 to   0.15)0.015  
 ActivityControl6.21 (0.08)–0.11 (–0.19 to  –0.02)0.0140.13 (0.01 to 0.24)0.028
Active6.20 (0.07)0.02 (–0.06 to   0.09)0.628  
 SymptomControl5.97 (0.10)–0.08 (–0.16 to   0.00)0.0600.19 (0.08 to 0.30)0.001
Active5.96 (0.09)0.11 ( 0.03 to   0.19)0.007  
 EmotionalControl5.83 (0.11)0.01 (–0.05 to   0.08)0.7460.14 (0.04 to 0.25)0.009
Active5.83 (0.11)0.15 ( 0.07 to   0.24)0.001  
 ExposureControl6.08 (0.09)–0.17 (–0.27 to  –0.07)0.0010.23 (0.11 to 0.34)<0.001
Active6.03 (0.08)0.06 (–0.01 to   0.13)0.067  
Indian subcontinent (n = 280)
 OverallControl6.01 (0.07)–0.15 (–0.21 to  –0.09)<0.0010.26 (0.17 to 0.36)<0.001
Active6.00 (0.06)0.11 ( 0.00 to   0.19)0.003  
 ActivityControl6.07 (0.07)–0.18 (–0.26 to  –0.10)<0.0010.22 (0.10 to 0.33)<0.001
Active6.23 (0.06)0.03 (–0.05 to   0.12)0.417  
 SymptomControl6.05 (0.08)–0.15 (–0.23 to  –0.07)0.0010.30 ( 0.18 to 0.42)<0.001
Active5.95 (0.07)0.15 ( 0.06 to   0.24)0.001  
 EmotionalControl5.71 (0.11)–0.06 (–0.13 to   0.02)0.1320.32 (0.06 to 0.44)<0.001
Active5.49 (0.11)0.26 ( 0.16 to   0.37)<0.001  
 ExposureControl6.09 (0.08)–0.18 (–0.25 to  –0.10)<0.0010.21 (0.10 to 0.31)<0.001
Active6.13 (0.07)0.03 (–0.04 to   0.10)0.423  
  • Range from 1 (minimum) = severe limitation or most of the time to 7 (maximum) = no limitation or none of the time. Within group (start versus end) and between group (active versus control) analysis shown with mean (SE) differences and 95% CI. Statistically significant where p<0.05.