Midlife contributors to socioeconomic differences in frailty during later life: a prospective cohort study

Fried, 2001, Frailty in older adults: evidence for a phenotype, J Gerontol A Biol Sci Med Sci, 56, M146, 10.1093/gerona/56.3.M146 Clegg, 2013, Frailty in elderly people, Lancet, 381, 752, 10.1016/S0140-6736(12)62167-9 Papachristou, 2017, Ability of self-reported frailty components to predict incident disability, falls, and all-cause mortality: results from a population-based study of older British men, J Am Med Dir Assoc, 18, 152, 10.1016/j.jamda.2016.08.020 Gill, 2010, Trajectories of disability in the last year of life, N Engl J Med, 362, 1173, 10.1056/NEJMoa0909087 Herr, 2015, Contribution of socioeconomic position over life to frailty differences in old age: comparison of life-course models in a French sample of 2350 old people, Ann Epidemiol, 25, 674, 10.1016/j.annepidem.2015.05.006 Biritwum, 2016, Prevalence of and factors associated with frailty and disability in older adults from China, Ghana, India, Mexico, Russia and South Africa, Maturitas, 91, 8, 10.1016/j.maturitas.2016.05.012 Etman, 2012, Socio-demographic determinants of worsening in frailty among community-dwelling older people in 11 European countries, J Epidemiol Community Health, 66, 1116, 10.1136/jech-2011-200027 Hoogendijk, 2014, Explaining the association between educational level and frailty in older adults: results from a 13-year longitudinal study in the Netherlands, Ann Epidemiol, 24, 538, 10.1016/j.annepidem.2014.05.002 Soler-Vila, 2016, Contribution of health behaviours and clinical factors to socioeconomic differences in frailty among older adults, J Epidemiol Community Health, 70, 354, 10.1136/jech-2015-206406 Bandeen-Roche, 2015, Frailty in older adults: a nationally representative profile in the United States, J Gerontol A Biol Sci Med Sci, 70, 1427, 10.1093/gerona/glv133 Beard, 2016, The World report on ageing and health: a policy framework for healthy ageing, Lancet, 387, 2145, 10.1016/S0140-6736(15)00516-4 Mackenbach, 2012, The persistence of health inequalities in modern welfare states: the explanation of a paradox, Soc Sci Med, 75, 761, 10.1016/j.socscimed.2012.02.031 Guzman-Castillo, 2017, Forecasted trends in disability and life expectancy in England and Wales up to 2025: a modelling study, Lancet Public Health, 2, e307, 10.1016/S2468-2667(17)30091-9 Kingston, 2017, Is late-life dependency increasing or not? A comparison of the Cognitive Function and Ageing Studies (CFAS), Lancet, 390, 1676, 10.1016/S0140-6736(17)31575-1 2015, National Institute for Health and Care Excellence: dementia, disability and frailty in later life—mid-life approaches to delay or prevent onset, NICE Guidelines Brunner, 2017, Midlife risk factors for impaired physical and cognitive functioning at older ages: a cohort study, J Gerontol A Biol Sci Med Sci, 72, 237, 10.1093/gerona/glw092 Frost, 2017, Health promotion interventions for community-dwelling older people with mild or pre-frailty: a systematic review and meta-analysis, BMC Geriatr, 17, 157, 10.1186/s12877-017-0547-8 Marmot, 2005, Cohort profile: the Whitehall II study, Int J Epidemiol, 34, 251, 10.1093/ije/dyh372 Elbaz, 2014, Trajectories of the Framingham general cardiovascular risk profile in midlife and poor motor function later in life: the Whitehall II study, Int J Cardiol, 172, 96, 10.1016/j.ijcard.2013.12.051 Brunner, 1997, Social inequality in coronary risk: central obesity and the metabolic syndrome. Evidence from the Whitehall II study, Diabetologia, 40, 1341, 10.1007/s001250050830 Gimeno, 2007, Adult socioeconomic position, C-reactive protein and interleukin-6 in the Whitehall II prospective study, Eur J Epidemiol, 22, 677, 10.1007/s10654-007-9171-9 Miller, 2005, General considerations for lung function testing, Eur Respir J, 26, 153, 10.1183/09031936.05.00034505 Xu, 1995, Age, period, and cohort effects on pulmonary function in a 24-year longitudinal study, Am J Epidemiol, 141, 554, 10.1093/oxfordjournals.aje.a117471 Rubin, 1987 Fine, 1999, A Proportional hazard model for the subdistribution of a competing risk, J Am Stat Assoc, 94, 496, 10.1080/01621459.1999.10474144 Chang, 2012, Smoking, death, and Alzheimer disease: a case of competing risks, Alzheimer Dis Assoc Disord, 26, 300, 10.1097/WAD.0b013e3182420b6e Brunner, 1999, When does cardiovascular risk start? Past and present socioeconomic circumstances and risk factors in adulthood, J Epidemiol Community Health, 53, 757, 10.1136/jech.53.12.757 Langenberg, 2006, Social circumstances and education: life course origins of social inequalities in metabolic risk in a prospective national birth cohort, Am J Public Health, 96, 2216, 10.2105/AJPH.2004.049429 Bouillon, 2013, Measures of frailty in population-based studies: an overview, BMC Geriatr, 13, 64, 10.1186/1471-2318-13-64 Lafortune, 2016, Behavioural risk factors in mid-life associated with successful ageing, disability, dementia and frailty in later life: a rapid systematic review, PLoS One, 11, e0144405, 10.1371/journal.pone.0144405 Baker, 2014 Mannino, 2006, The natural history of chronic obstructive pulmonary disease, Eur Respir J, 27, 627, 10.1183/09031936.06.00024605 Kuh, 2005, Grip strength, postural control, and functional leg power in a representative cohort of British men and women: associations with physical activity, health status, and socioeconomic conditions, J Gerontol A Biol Sci Med Sci, 60, 224, 10.1093/gerona/60.2.224 Albanese, 2014, Weight loss and premature death: the 1946 British birth cohort study, PLoS One, 9, e86282, 10.1371/journal.pone.0086282 Batty, 2014, Generalizability of occupational cohort study findings, Epidemiology, 25, 932, 10.1097/EDE.0000000000000184 Elovainio, 2011, Socioeconomic differences in cardiometabolic factors: social causation or health-related selection? Evidence from the Whitehall II Cohort Study, 1991–2004, Am J Epidemiol, 174, 779, 10.1093/aje/kwr149 Kalousova, 2015, Increase in frailty of older workers and retirees predicted by negative psychosocial working conditions on the job, Soc Sci Med, 124, 275, 10.1016/j.socscimed.2014.11.055 Gardiner, 2016, The effect of socioeconomic status across adulthood on trajectories of frailty in older women, J Am Med Dir Assoc, 17, 372, 10.1016/j.jamda.2015.12.090 Mooney, 2016, Perceived control mediates effects of socioeconomic status and chronic stress on physical frailty: findings from the health and retirement study, J Gerontol B Psychol Sci Soc Sci, 10.1093/geronb/gbw096 Alvarado, 2008, Life course social and health conditions linked to frailty in Latin American older men and women, J Gerontol A Biol Sci Med Sci, 63, 1399, 10.1093/gerona/63.12.1399 Seeman, 2004, Cumulative biological risk and socio-economic differences in mortality: MacArthur studies of successful aging, Soc Sci Med, 58, 1985, 10.1016/S0277-9536(03)00402-7