REVES. May 2008 Lifetime in various health states among the oldest-old in Denmark Henrik Brønnum-Hansen Inge Petersen Bernard Jeune Kaare Christensen
Purpose To quantify the average lifetime according to health status among the oldest-old in Denmark. May 2008. Henrik Brønnum-Hansen 2
Data Survivors of the 1905 Danish birth cohort. 2259 participants (63% of all survivors) were interviewed in 1998 and re-assessed in 2000, 2003 and 2005. May 2008. Henrik Brønnum-Hansen 3
Self-rated health Question: How would you rate your health in general? Answer categories: very good, good, fair, poor, very poor grouped into: good, fair and poor May 2008. Henrik Brønnum-Hansen 4
Physically independent If she did not require assistance to get up from a chair or a bed walk around in the house go to the toilet If a person was too weak to participate, a proxy was asked to assist May 2008. Henrik Brønnum-Hansen 5
Cognitive function Measured by the Mini-Mental State Examination Scale 0-30 Score > 22: cognitively intact If a person was too weak to participate, a proxy was asked to assist May 2008. Henrik Brønnum-Hansen 6
Physical and cognitive functioning Estimated as Physical independence without cognitive impairment May 2008. Henrik Brønnum-Hansen 7
Interview plan Intake survey in 1998. Follow-up interviews in 2000 2003 2005 Register follow-up with respect to death 31 December 2005 1998 1999 2000 2001 2002 2003 2004 2005 2006 May 2008. Henrik Brønnum-Hansen 8
Dead No interview?-------------? Less than 6 months? --? Dead More than 6 months? -----------------? Dead 3 months 1998 1999 2000 2001 2002 2003 2004 2005 2006 Healthy status Unhealthy status May 2008. Henrik Brønnum-Hansen 9
To validate the influence of missing i values the results were recalculated after Dead No interview replacing missing values for a person?-------------? by the best and worst reported health state Less than 6 months?--? Dead at the other interviews with that person. More than 6 months?--------------? Dead 1998 1999 2000 2001 2002 2003 2004 2005 2006 Healthy status Unhealthy status May 2008. Henrik Brønnum-Hansen 10
Also the robustness of the assumptions about health state after the last interview Dead No interview were evaluated by recalculations after?-------------? it was assumed that all persons who Less than 6 months?--? Dead were interviewed more than 6 months More than 6 months before the end of follow-up or death?--------------? Dead had the worst health status during 1998 1999 2000 2001 2002 2003 2004 2005 2006 the last 6 months of their life. Healthy status Unhealthy status May 2008. Henrik Brønnum-Hansen 11
Results May 2008. Henrik Brønnum-Hansen 12
The Danish 1905 cohort 3600 alive in 1998 2259 (62.8%) participated at the first interview 1998 (age 92-93) 199 (8.8%) 8%) were still alive on 1 January 2006 (age 100) May 2008. Henrik Brønnum-Hansen 13
4 Average lifetime in self-rated good, fair and poor health between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 Life-y years 3 2 2.70 0.18 0,34 0.54 0.85 0.91 0.41 0.79 0.40 0.30 076 0.76 094 0.94 1.03 0.38 0.86 Average lifetime in inestimable self-rated health self-rated poor health 1 1.33 1.26 1.65 1.55 1.49 2.07 self-rated fair health self-rated good health 0 Men Women * Estimated by replacing missing values for a person by the best and worst reported health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 14
4 Average lifetime in self-rated good, fair and poor health between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 Life-y years 3 2 2.70 0.18 0,34 0.54 0.85 0.91 0.41 0.79 0.40 0.30 076 0.76 094 0.94 1.03 0.38 0.86 Average lifetime in inestimable self-rated health self-rated poor health 1 1.33 1.26 1.65 1.55 1.49 2.07 self-rated fair health self-rated good health 0 Men Women * Estimated by replacing missing values for a person by the worst best and reported worst health reported health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 15
4 Average lifetime in self-rated good, fair and poor health between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 Life-y years 3 2 2.70 0.18 0,34 0.54 0.85 0.91 0.41 0.79 0.40 0.30 076 0.76 094 0.94 1.03 0.38 0.86 Average lifetime in inestimable self-rated health self-rated poor health 1 1.33 1.26 1.65 1.55 1.49 2.07 self-rated fair health self-rated good health 0 Men Women * Estimated by replacing missing values for a person by the best and worst reported health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 16
4 Average lifetime in physical independence and dependence between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 3 2.70 0.93 0.95 0.84 Life-y years 2 0.69 0.71 0.62 Average physically dependent lifetime 1 2.01 200 2.00 2.09 2.37 2.36 2.47 Average physically y independent lifetime 0 Men Women * Estimated by replacing missing values for a person by the best and worst reported health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 17
4 Average lifetime in physical independence and dependence between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 3 2.70 0.93 0.95 0.84 Life-y years 2 0.69 0.71 0.62 Average physically dependent lifetime 1 2.01 200 2.00 2.09 2.37 2.36 2.47 Average physically y independent lifetime 0 Men Women * Estimated by replacing missing values for a person by the best worst and reported worst reported health health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 18
4 Average lifetime in physical independence and dependence between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 3 2.70 0.93 0.95 0.84 Life-y years 2 0.69 0.71 0.62 Average physically dependent lifetime 1 2.01 200 2.00 2.09 2.37 2.36 2.47 Average physically y independent lifetime 0 Men Women * Estimated by replacing missing values for a person by the best and worst reported health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 19
4 3 Average lifetime by physical and cognitive functioning between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 2.70 Life-y years 2 1.57 1.60 1.43 2.16 2.21 2.03 Average lifetime with physical dependence d and/or mild or severe cognitive impairment 1 1.13 1.11 1.27 1.13 1.10 1.27 Average physically independent lifetime with no cognitive impairment 0 Men Women * Estimated by replacing missing values for a person by the best and worst reported health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 20
4 3 Average lifetime by physical and cognitive functioning between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 2.70 Life-y years 2 1.57 1.60 1.43 2.16 2.21 2.03 Average lifetime with physical dependence d and/or mild or severe cognitive impairment 1 1.13 1.11 1.27 1.13 1.10 1.27 Average physically independent lifetime with no cognitive impairment 0 Men Women * Estimated by replacing missing values for a person by the worst best and reported worst health reported health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 21
4 3 Average lifetime by physical and cognitive functioning between ages 92 and 100 for Danes born in 1905 and followed up until 2006 3.31 2.70 Life-y years 2 1.57 1.60 1.43 2.16 2.21 2.03 Average lifetime with physical dependence d and/or mild or severe cognitive impairment 1 1.13 1.11 1.27 1.13 1.10 1.27 Average physically independent lifetime with no cognitive impairment 0 Men Women * Estimated by replacing missing values for a person by the best and worst reported health * at the other interviews for that person. May 2008. Henrik Brønnum-Hansen 22
Conclusion The average lifetime between ages 92 and 100 was about 3 years, of which 50% in self-rated good health 75% in a state of physical independence 33% (at least) in a state of physical independence without cognitive impairment May 2008. Henrik Brønnum-Hansen 23
Healthy ageing? Happy ending! Thank you!