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. 2012 Nov 14;2012(11):CD007407. doi: 10.1002/14651858.CD007407.pub3

Bliokas 2007.

Methods RCT; 3 arms; assessed at pretreatment and post‐treatment
Participants End of treatment n = 94
Start of treatment n = 143
Sex: 79 F, 64 M
Mean age =  45.2 (SD 9.2)
Source = referrals to Pain Management Service after medical treatment completed
Diagnosis = chronic non‐cancer pain
Mean years of pain = median 4.0
Interventions "Graded exposure in vivo and outpatient multidisciplinary chronic pain management group program"
"outpatient multidisciplinary chronic pain management group program"
"Waiting list control"
Outcomes Primary pain outcome: pain VAS
Primary disability outcome: Pain Disability Index
Primary mood outcome: DASS depression
Catastrophising outcome: none
1. Pain VAS
2. Tampa Scale for Kinesiophobia: fear of movement/re/injury
3. Pain Self‐Efficacy Questionnaire (PSEQ)
4. Pain Disability Index (PDI)
5. Depression, Anxiety & Stress Scale (DASS): depression and anxiety scores only
6. Activity level: performance over 2 weeks of 10 usually avoided activities
7. 6‐minute walk test
Notes Chronic pain management programme with graded exposure versus waiting list control
December 2009 search
Data obtained from author: analyses 3.1, 3.2, 3.3
Yates quality scale: total quality = 23/35, design quality = 15/26, treatment quality = 8/9
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Low risk Random numbers generation
Allocation concealment (selection bias) High risk Not reported
Incomplete outcome data (attrition bias) 
 All outcomes Low risk Attrition fully reported; no differences
Selective reporting (reporting bias) Low risk Fully reported
Blinding of outcome assessment (detection bias) 
 All outcomes High risk Examination by physiotherapist and self report: no blinding reported