Figure 2.

Would you agree to donate the following type of samples for medical research, that is, not as part of any medical procedure, but purely for the purposes of research?

Note: percentages may not add up to 100% due to rounding. The χ² test was conducted to examine effects of participants’ characteristics on willingness to donate tissues requiring a local anaesthetic and sperm as these two tissue types caused the most divide among participants. Willingness to donate tissue requiring a local anaesthetic was significantly associated with: being over 25 years (72.9% vs 59.3%, χ²=9(1); p=0.003), from a higher socioeconomic group (A–D, 73.1% vs 60.9%, χ²=9.03(1); p=0.003), White ethnicity (72.3% vs 48.9%, χ²=10.87(1); p=0.001), being not at all or moderately religious where they had a religious affiliation (71.4% vs 49.2%, χ²=11.53(1); p=0.001), having good knowledge of the medical research process (75.8% vs 64.5%, χ²=14.96(1); p=0.001), having had tissue removed during a medical procedure (77.9% vs 64%, χ²=20.77(1); p<0.001) and having agreed to donate left over tissues (82.8% vs 45.5%, χ²=13.51(1); p<0.001). Men who were willing to donate sperm were significantly more likely to be: from a higher socioeconomic group (A–D, 66.8% vs 42%, χ²=14.47(1); p<0.001), White ethnicity (65.8% vs 22.2%, χ²=18.95%1); p<0.001) and be either not at all or moderately religious where they did have a religious affiliation (64.3% vs 36.4%, χ²=5.61(1); p=0.018).