Summary of acceptability results by tablet size
| Size of placebo tablet | 6 mm | 8 mm | 10 mm |
| Number of participants who attempted to swallow each placebo tablet | 55 | 48 | 46 |
| 4–8 years | 30 | 23 | 21 |
| 9–12 years | 25 | 25 | 25 |
| Swallowability | |||
| Participants aged 4–8 years able to swallow the placebo tablet | 67% | 91% | 95% |
| Participants aged 9–12 years able to swallow the placebo tablet | 100% | 100% | 96% |
| Rated acceptable on hedonic scale by participants aged 4–8 years | 72% | 91% | 90% |
| Rated acceptable on hedonic scale by participants aged 9–12 years | 100% | 96% | 96% |
| Negative facial expressions in participants aged 4–8 years | 50% | 52% | 48% |
| Negative facial expressions in participants aged 9–12 years | 16% | 28% | 24% |
| Taste | |||
| Rated acceptable on hedonic scale by participants aged 4–8 years | 86% | 95% | 100% |
| Rated acceptable on hedonic scale by participants aged 9–12 years | 100% | 96% | 96% |
| Volume of water consumed to swallow each placebo tablet | |||
| Average volume of water (mLs) required by participants aged 4–8 years | 27 | 32 | 31 |
| Average volume of water (mLs) required by participants aged 9–12 years | 18 | 19 | 21 |
| Rated acceptable on hedonic scale by participants aged 4–8 years | 85% | 86% | 90% |
| Rated acceptable on hedonic scale by participants aged 9–12 years | 96% | 100% | 100% |
| Overall acceptability | |||
| Rated acceptable on hedonic scale by participants aged 4–8 years | 79% | 100% | 90% |
| Rated acceptable on hedonic scale by participants aged 9–12 years | 96% | 100% | 100% |
| Willing to take the placebo tablet every day if it was a medicine (participants aged 4–8 years) | 66% | 91% | 90% |
| Willing to take the placebo tablet every day if it was a medicine (participants aged 9–12 years) | 96% | 92% | 96% |