Table 2

Sample and response rates.

Patients, nMean age, yearsWomen, %
ConditionInvitedStudy population (%)InvitedStudy populationInvitedStudy population
Asthma402253 (63)45505356
Hypertension399304 (76)67675859
Depression529279 (53)45506972
Osteoarthritis393320 (81)70706565
All17231156 (67)56606263