Table I  Response rate by type of GP

 

Type of GP

 

Questionnaires posted

 

Questionnaires returned

 

Questionnaires returned and usable

 

 

Response rate

GP principal

 

1,000

678

637

64%

GP non-principal

 

359

152

130

36%

PMS GP

 

62

40

35

56%

Total

 

1,421

870

802

56%