Table 1

Search strategy (Medline search algorithm)

#1Informal careg*
#2Family careg*
#3Private careg*
#4Spousal careg*
#5Parental careg*
#6#1 OR #2 OR #3 OR #4 OR #5
#7Lonel*
#8Social isolation
#9Social exclusion
#10#7 OR #8 OR #9 ‘
#11#6 AND #10