Skip to main content

Table 3 Mean SF-36 scores at two days

From: A randomised controlled trial to measure the effect of chest pain unit care upon anxiety, depression, and health-related quality of life [ISRCTN85078221]

  N (% completed) CPU care Routine care Difference 95% CI P-value ρ
     Unadjusted    
     Adjusted    
Physical functioning 694 (96.7%) 74.8 69.7 5.1 1.1 to 9.0 0.012 0.002
     4.2 0.4 to 7.9 0.029  
Social functioning 703 (98.0%) 72.2 69.8 2.4 -1.7 to 6.6 0.252 0
     1.5 -2.7 to 5.6 0.49  
Role-physical 684 (95.4%) 50.4 46.0 4.4 -2.2 to 11.0 0.191 0.028
     3.3 -3.3 to 10.0 0.326  
Role-emotional 685 (95.5%) 64.7 59.5 5.2 -1.2 to 11.6 0.113 0
     5.1 -1.2 to 11.4 0.111  
Mental health 700 (97.6%) 66.9 64.7 2.2 -0.9 to 5.3 0.158 0
     2.3 -0.7 to 5.4 0.132  
Vitality 697 (97.2%) 52.3 47.6 4.6 1.3 to 8.0 0.007 0
     4.6 1.3 to 8.0 0.007  
Pain index 701 (97.7%) 50.8 49.0 1.8 -1.9 to 5.5 0.351 0
     2.0 -1.7 to 5.7 0.284  
General health 688 (96.0%) 60.3 54.5 5.7 2.3 to 9.2 0.001 0
     5.4 2.0 to 8.8 0.002  
  1. Upper row shows unadjusted analysis (primary analysis) Lower row shows adjusted analysis (secondary analysis) ρ = Intraclass correlation coefficient. This provides a measure of the amount of clustering of each outcome by the unit of randomisation (day).