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Table 3 Rating scale for the intensity of the intervention (women)

From: Process evaluation for OptiBIRTH, a randomised controlled trial of a complex intervention designed to increase rates of vaginal birth after caesarean section

High intensity

>60% of recruited women attending two antenatal classes

or

>80% of recruited women attending one antenatal class

Moderate intensity

>50% of recruited women attending two antenatal classes

or

>65% of recruited women attending one antenatal class

Low intensity

>40% of recruited women attending two antenatal classes

or

>50% of recruited women attending one antenatal class

“No intervention”

0–40% of recruited women attending two antenatal classes

or

0–50% of recruited women attending one antenatal class