Socioeconomic status and demography:
Housing, number of stairs at main entrance, education, income, marital status, spouse education, age and birth year of parents, residency of parents, employment/working situation, type of employment, age at retirement, reason for retirement, feelings after retirement, job satisfaction.
Social contact and assistance:
Social contact with parents, provision of help to/from parents, siblings, children, social contact with children/grandchildren, provision of help to/from children/grandchildren, social contact with friends.
Health and physical function (self-reported):
Self-reported health status, parents´ health, longstanding limiting illness which affects functions in daily life, diseases, medications, symptoms, vision, hearing, hearing aid, pADL, iADL, depression (EURO-D scale) , anxiety (Generalized Anxiety Disorder Screener, GAD-7) , sleep quality, vitality, subjective age, subjective life expectancy, preferred life length, hypothetical conditions affecting preferred life length.
Systolic and diastolic blood pressure x 2, pulse, height, weight, waist circumference, arm circumference
Intrinsic capacity (measured):
Grip strength (JAMAR dynamometer), Short physical performance battery (SPPB, the official Norwegian version ) (standing balance, walking speed, chair rise test), one-leg standing balance (eyes open/closed) [23, 24], Montreal Cognitive Assessment (MoCA) , 10-word memory test (immediate and delayed recall), Cognitive Function Screening Instrument (MCFSI) (KFI) self-reported .
Health related factors:
Smoking, snus, alcohol use, physical activity, loneliness, volunteering, leisure activities.
Health services use:
Use of general practitioner, medical specialist by type, dentist, nursing home, home based care.