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Table 1 Process evaluation plan

From: Is a motivational interviewing based lifestyle intervention for obese pregnant women across Europe implemented as planned? Process evaluation of the DALI study

Process evaluation question

Complete and acceptable delivery

Process measure

How many people of the target population took part in the project? (reach)

The intervention group is comparable to the study population

Weekly recruitment report kept by each research centre

What recruitment procedures were used to attract pregnant women? (recruitment)

Strategies on recruitment across multicentre research.

Notes from (telephone) meetings with research nurses, coaches, principal investigators throughout the project

How many participants received 5 face-to-face conversations with a personal lifestyle coach? (dose delivered)

All (100%) received 5 face-to-face conversations with a personal lifestyle coach

Coach logs recorded after a session

To what extend was face-to-face counselling delivered as planned by MI guidelines? (fidelity)

MI was applied to deliver the face-to-face conversations

Recorded conversations assessed using the Motivational Interviewing Treatment Integrity measure (MITI 3.1.1)

How many telephone booster sessions did the participants receive? (dose delivered)

0–4 telephone booster sessions were delivered

Coach logs recorded after a session

How satisfied were participants with the DALI intervention (components)? (dose received: satisfaction)

All participants were satisfied with the DALI intervention

Evaluation questionnaire at 35–37 weeks of gestation