Table 1 Characteristics of recruited practices by design factor

Opportunistic (N = 12)

Systematic (N = 12)

Practice list size^a (n (%))

Small

4 (33)

3 (25)

Medium

5 (42)

3 (25)

Large

3 (25)

6 (50)

Practice deprivation score (n (%))

Least deprived quartile

0 (0)

3 (25)

Central two quartiles

9 (75)

6 (50)

Most deprived quartile

3 (25)

3 (25)

Practice characteristics by participant randomisation method

Cluster (N = 18)

Individual (N = 6)

Practice list size^a (n (%))

Small

4 (22)

3 (50)

Medium

7 (39)

1 (17)

Large

7 (39)

2 (33)

Practice deprivation score (n (%))

Least deprived quartile

2 (11)

1 (17)

Central two quartiles

11 (61)

4 (67)

Most deprived quartile

5 (28)

1 (17)