Table 1.
PICOS search strategy and sources for the reviews
| PRISMS systematic meta-review | RECURSIVE systematic review | |
|---|---|---|
| Population | Adults/children with asthma, from all social and demographic settings. Multi-condition studies if asthma data reported. | Adults (≥18 years) with asthma (within a wider search of long-term conditions), excluding studies in the developing world. |
| Intervention | Self-management support interventions. | Self-management support interventions. |
| Comparator | Typically ‘usual care’ or less intense self-management interventions. | Typically ‘usual care’ or less intense self-management interventions. |
| Outcomes | Unscheduled use of healthcare services (admissions, A&E attendances, unscheduled consultations), health outcomes (asthma control), quality of life, process outcomes (ownership of action plans, self-efficacy). | Healthcare utilisation with comprehensive measures of costs or major cost drivers (i.e. hospitalisation, A&E attendances), quality of life. |
| Settings | Any healthcare setting. | Any healthcare setting. |
| Study design | Systematic reviews of RCTs. RCTs published after the date of the last search in the included systematic reviews (see Additional file 2). |
RCTs |
| Dates | Initial database search: January 1993 (3 years before the publication of the earliest systematic review identified in scoping work) to July 2012. Manual and forward citations were completed in November 2012. Update search: March 2015. Pre-publication update January 2017. |
Initial database search: inception to May 2012. Update search: September 2015. |
| Databases | MEDLINE, EMBASE, CINAHL, PsycINFO, AMED, BNI, Cochrane Database of Systematic Reviews, Database of Abstracts of Reviews of Effects, and ISI Proceedings (Web of Science). | CENTRAL, CINAHL, EconLit, EMBASE, Health Economics Evaluations Database, MEDLINE, MEDLINE In-Process & Other Non-Indexed Citations, NHS Economic Evaluation Database, and the PsycINFO. |
| Manual searching | Systematic Reviews, Health Education and Behaviour, Health Education Research, Journal of Behavioural Medicine, and Patient Education and Counseling. | Systematic Reviews. |
| Forward citations | On all included systematic reviews. Bibliographies of eligible reviews. | None. |
| In progress studies | Abstracts were used to identify recently published trials. | Abstracts were used to identify recently published trials. |
| Other exclusions | Previous versions of updated reviews. Papers not published in English. |
Not applicable. |
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