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Table 1 Primary and secondary outcome measures of the effect evaluation

From: The effectiveness of the Screening Inventory of Psychosocial Problems (SIPP) in cancer patients treated with radiotherapy: design of a cluster randomised controlled trial

Variables No. of items T1 T2 T3 T4
Primary outcome measures:      
Number and types of referrals 8/NA - - Q Q/DR
Secondary outcome measures:      
Patients' satisfaction with the radiotherapist-patient communication 5 - Q - -
Extent of psychological symptoms:      
Symptoms of anxiety and depression (HADS) 14 Q - Q Q
General psychological distress (GHQ-12) 12 Q - Q Q
Quality of life (EORTC QLQ-C30) 30 Q - Q Q
Additional variables:      
Socio-demographic variables 4 - Q - -
Medical variables 4 - - - DR
  1. T1: Before first consultation (baseline, only groups with pre-measurement); T2: After consultation;
  2. T3: Three months after baseline; T4: 12 months after baseline; N/A: not applicable; Q: questionnaire:
  3. DR: data record.
  4. HADS: Hospital Anxiety and Depression Scale [16]; GHQ-12: General Health Questionnaire-12 items [17];
  5. EORTC QLQ-C30: European Organisation for Research and Treatment of Cancer,
  6. Quality of life Questionnaire 30 items [46].