They are subjective individualised factors, objective individualised factors, activity, social interaction, community, services for the elderly, and public policy.
Þeir eru huglægir einstaklingsbundnir þættir, hlutlægir einstaklingsbundnir þættir, virkni, félagsleg tengsl, samfélagið, þjónusta við aldraða og stjórnsýslan.