Table 2 Key question 2 eligibility criteria

Population

Community-dwelling adults aged 65 years or older.

Studies recruiting adults under the age of 65 may be included if one of the following applies:

- > 80% of the study sample are aged 65 years and older;

- Participants’ mean age minus one standard deviation is equal to or greater than 65;

- Results for adults 65 years and older are provided separately.

Studies focussed only on participants < 65 years old.

Exposure/intervention

Experience with interventions to reduce use of potentially inappropriate prescribed and/or over-the-counter medications, or exposure to information about different types and/or attributes of interventions (e.g., mode, duration, setting, delivery providers, type of intervention).

Study must relate to types of interventions or attributes of interventions shown to be effective for at least one critical/primary outcome, from KQ1.

Comparator

Depending on the study design, comparator may be:

a) Experience with different types of intervention, or

b) Information about a different type of intervention, in terms of its components and/or attributes

Outcomes

Depending on study design:

Preference for different interventions or their attributes

Quantitative information about relative importance of different interventions or their attributes (e.g., actual participation, proportion preferring one type of intervention or attribute, intentions to participate, dropouts, strength of associations between attribute ranking/ratings and behaviors)

Setting

Any relevant setting to primary care where intervention is delivered by or initiated by first contact care providers (e.g., primary care, home, community, nursing/long-term care homes, emergency department)

Settings not relevant to primary care or not targeting general community-dwelling population (e.g., workplaces, inpatient settings, specialist settings)

Study design

RCTs (individual or cluster), non-randomized experimental studies (i.e., study assigned intervention without randomized allocation), or observational study design with a comparator reporting stated preferences or relative importance using the methods described below:

a) Preference measured directly via conjoint analysis with choice experiments or probability trade-offs (e.g., best-worst scaling choice experiment)

b) Surveys/questionnaires or studies evaluating decision aids

Systematic reviews, case-control studies, case reports, case series, qualitative studies.

Letters, commentaries, editorials.

Publication language

English or French

Languages other than English and French

Dates of publication

No year limitation