Table 1.

Example of search strategy

PsycINFO data base via OvidSP host system: January 1999–December 2009
1	(parent* or mother* or father* or famil* or guardian* or carer* or foster*).mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]
2	((long‐term or long term or chronic or disabling or long‐standing or long standing) adj (disease or illness or condition*)) [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]
3	Complex needs
4	Medically fragile
5	2 or 3 or 4
6	(child* or paediatric or pediatric or daughter or son).mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]
7	1 and 5 and 6
8	(experience* or perception* or view* or thought* or attitude* or perspective*).mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]
9	((parent* or mother* or father* or famil* or guardian* or carer* or foster*) adj2 (experience* or perception* or view* or thought* or attitude* or perspective*s)).mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]
10	7 and 9
11	Limit 9 to year “1999–2009”
12	Limit 10 to “childhood or adolescence”
13	Limit 12 to “English language”
14	Limit 13 to “empirical study”