Agreement between respondents who participated in all FU rounds and respondents who did not participate in any FU round
Statement | Participated in all FU rounds (n=24) | Did not participate in any FU round (n=7) | P value | ||
| n | % | n | % | ||
| The importance of the intervention study was clear | 22 | 91.7 | 5 | 71.4 | 0.21 |
| I want to contribute to knowledge regarding obesity | 22 | 91.7 | 5 | 71.4 | 0.21 |
| I want to contribute to knowledge regarding fertility | 24 | 100 | 6 | 85.7 | 0.23 |
| I felt that during the original trial there was enough attention for my wish to conceive | 21 | 87.5 | 5 | 71.4 | 0.56 |
| I felt involved in the intervention study | 18 | 75 | 3 | 42.9 | 0.17 |
| I felt involved in the FU | 23 | 95.8 | 1 | 14.3 | <0.001 |
| The way in which the intervention study was introduced by the health professional was good | 21 | 87.5 | 5 | 71.4 | 0.56 |
| The way in which the FU was introduced by the health professional was good | 22 | 91.7 | 2 | 28.6 | 0.002 |
| The link between the intervention study and the FU was clear | 17 | 70.8 | 2 | 28.6 | 0.08 |
| I would have liked it if it was clear at introduction of the intervention study, that there would be an FU | 3 | 12.5 | 6 | 85.7 | 0.001 |
| If the FU would have been introduced by someone from the RCT, I would have been more likely to participate | 0 | 0 | 4 | 57.1 | 0.001 |
| There was too much time in between the several visits of the FU | 3 | 12.5 | 2 | 28.6 | 0.56 |
| I would have wanted to receive more updates during the FU | 7 | 29.2 | 2 | 28.6 | 1.0 |
| I think it’s important that the subject of research is something that I find personally interesting | 11 | 45.8 | 7 | 100 | 0.03 |
| I knew that obesity and fertility were related | 19 | 79.2 | 7 | 100 | 0.56 |
| I knew that cardiovascular diseases are more common in females | 14 | 58.3 | 5 | 71.4 | 0.68 |
| I knew that the later health of a child may depend on lifestyle during pregnancy | 16 | 66.7 | 6 | 85.7 | 0.64 |
| The importance of the FU was clear | 23 | 95.8 | 3 | 42.9 | 0.005 |
| I thought that there was a negative stigma regarding obesity during the introduction of the intervention study | 7 | 29.2 | 2 | 28.6 | 1.0 |
| I think it’s important to receive an incentive after participation | 10 | 41.7 | 3 | 42.9 | 1.0 |
FU, follow-up; RCT, randomised controlled trial.