Comparison of the CACE estimate of the mean treatment difference to the intention-to-treat ( ITT ) estimate at @ months showed a greater benefit of CBI amongst participants compliant with treatment on the Roland Morris Questionnaire ( CACE : @ points , @ % CI @ to @ ; ITT : @ points , @ % CI @ to @ ) , the Modified Von Korff disability score ( CACE : @ points , @ % CI @ to @ ; ITT : @ points , @ % CI @ to @ ) and the Modified von Korff pain score ( CACE : @ points , @ % CI @ to @ ; ITT : @ points , @ % CI @ to @ ) .