Table 4 Behaviour change techniques, mode of delivery and dose for monetary reward interventions

Bauer [6]

Intervention

1) Postal cheque

1) Once

USD10 cheque or

USD2 cheque

x

n/a

x

n/a

Control

x

n/a

x

n/a

x

n/a

Gates [7]

Intervention

1) postal

1) Once

GBP5 voucher

x

n/a

x

n/a

Control

x

n/a

x

n/a

x

n/a

Kenyon [8]

Intervention

1) Postal voucher

1) Once

GBP5 voucher

x

n/a

x

n/a

Control

x

n/a

x

n/a

x

n/a

Khadjesari 1 [9]

Intervention

x

n/a

1) Via email

1) Once

1) Via email

1) Once

-Offer GBP5 Amazon voucher

or

- Offer of GBP5 CRUK donation

or

- Offer of entry into GBP250 charitable prize draw

Control

x

n/a

x

n/a

x

Khadjesari 2 [9]

Intervention

x

n/a

1) Via email

1) once

1) Via email

1) Once

GBP10 Amazon voucher

Control

x

n/a

x

n/a

x

n/a