Table 6 Impact of healthcare referral on measures of participant attendance and participation duration [n (participants) = 13,352; n (sites) = 132]

 Recruitment strategy: healthcare referral

1.0

0.5*

33.7*

 Race/ethnicity: Hispanic¹

− 0.6*

0.1

0.9

 Race/ethnicity: non-Hispanic Black¹

− 0.8*

− 0.2*

− 10.9*

 Race/ethnicity: non-Hispanic other¹

− 0.6*

− 0.1*

− 7.0*

 Prediabetes eligibility determination: prediabetes risk test²

− 0.6*

− 0.1*

− 11.5*

 Age 18–44 years³

− 2.8*

− 0.6*

− 41.6*

 Age 45–64 years³

− 1.2*

− 0.2*

− 17.8*

 Male⁴

0.2

0.0

2.1

 BMI: underweight/normal⁵

0.1

0.2

2.8

 BMI: overweight⁵

0.3*

0.13*

7.1*