Table 5 Baseline characteristics at patient, GP, and practice level (presented by intervention group)

Cohort 1*

Age (years) (mean, SD)

No. GPs per practice (mean, SD)

Age (years) (mean, SD)

Sex (no., % female)

Rural practices (no., %)

Sex (no., % female)

No. of years since graduated from medical school (mean, SD)

Estimated total number of patients on the practice’s books (mean, SD)

Suspected cognitive impairment (no., %)

Country of medical training (Australia or overseas) (no., % Australia)

Practice nurse available (no., %)

Involved in undertaking health assessments for people aged ≥75 years (no., %)

Cognitive assessment using MMSE (no., %)

Yrs. practised in Aust. if overseas medical training (mean, SD)

Undertakes full assessment or part (in combination with GP) (no., %full)

Cohort 2*

GP registrar (no., %)

Involved in other aged care activities (no., %)

Age (years) (mean, SD)

Fellow of RACGP (no., %)

Other health practitioners work in the practice (specialist, allied health) (no., %)

Sex (no., % female)

Member of GP Division in their region (no., %)

Practice formally involved in training GP registrars (no., %)

Cognitive assessment using MMSE (no., %)

Hours spent per week in clinical practice (mean, SD)

Practice services residential care facilities (no., %)

Depression assessment using validated scale (no., %)

No. patients seen per week (mean, SD)

Method of billing (bulk bill or co-payment) (no., %bulk bill)

Percentage of patients over 70 (mean, SD)

Age of practice (years) (mean, SD)

Referral to CDAMS or specialist (no., %)

Special interest in dementia (no., %)

Ownership (corporate or privately owned) (no., %corporate)

Referral for CT scan (no., %)

Special interest in aged care (no., %)

Self-report of adherence to recommended behaviours (mean, SD)

Intention to adhere to recommended behaviours (mean, SD)

Behavioural constructs for primary outcomes (mean, SD)