Key issues in recruitment to randomised controlled trials with very different interventions: a qualitative investigation of recruitment to the SPARE trial (CRUK/07/011)

Table 2 SPARE trial screening log summary information

Total no. of patients considered for SPARE (22 centres; 22 months)	585
Ineligible	331 (56.6%)
Potentially eligible	254 (43.4%)
A. Approached	110 (43.3%)
1. Recruited	34 (30.9%)
2. Declined	76 (69.1%)
Due to preference	56 (73.7%)
Surgery	17 (30.4%)
Radiotherapy/No surgery	33 (58.9%)
No chemo	6 (10.7%)
Unknown/Other	20 (26.3%)
B. Not approached	105 (41.3%)
1. Due to preference	28 (26.7%)
Surgery	11 (39.3%)
Radiotherapy/No surgery	10 (35.7%)
No chemo	7 (25%)
2. Clinical Decision	22 (20.9%)
3. Unknown/Other	55 (52.4%)
Pending	39 (15.4%)

Clinical centres open for recruitment to SPARE were asked to keep detailed logs of patients who were investigated for trial eligibility to record what happened to them, including reasons for including/not including them in recruitment and any reasons given for declining involvement. The analysis of these data is shown in Table 2.

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