Henriette Engberg

Centenarians - a useful model for healthy aging?: A 29 year follow-up of hospitalizations among 40,000 Danes born in 1905

Centenarians surpass the current human life expectancy with about 20–25 years. However, whether centenarians represent healthy aging still remains an open question. Previous studies have been hampered by a number of methodological shortcomings such as a cross‐sectional design and lack of an appropriate control group. In a longitudinal population‐based cohort, it was examined whether the centenarian phenotype may be a useful model for healthy aging. The study was based on a complete follow up of 39 945 individuals alive in the Danish 1905 birth cohort on January 1, 1977 identified through the Danish Civil Registration System (DCRS). Data from the Danish Demographic Database and The Danish National Patient Register (in existence since 1977) were used. The 1905 cohort was followed up from 1977 through 2004 with respect to hospitalizations and number of hospital days. Survival status was available until December 2006. Danish centenarians from the 1905 cohort were hospitalized substantially less than their shorter‐lived contemporaries at the same point in time during the years 1977 through 2004. For example, at age 71–74, the proportion of nonhospitalized centenarians was 80.5% compared with 68.4% among individuals who died in their early 80s. This trend was evident in both sexes. As a result of their lower hospitalization rates and length of stay in hospital compared with their contemporaries, who died at younger ages, Danish centenarians represent healthy agers. Centenarians constitute a useful study population in the search for fixed traits associated with exceptional longevity, such as genotype.

Cohort changes in cognitive function among Danish centenarians. A comparative study of 2 birth cohorts born in 1895 and 1905

Background/Aim: The objective was to examine cohort changes in cognitive function in 2 cohorts of centenarians born 10 years apart. Methods: The Longitudinal Study of Danish Centenarians comprises all Danes reaching the age of 100 in the period April 1, 1995 through May 31, 1996. A total of 207 out of 276 persons participated (75%). The Danish 1905 Cohort Survey includes all individuals born in 1905. In total, 225 out of 364 persons who reached the age of 100 in the cohort participated in the most recent 2005 follow-up (62%). In both cohorts, cognitive function was assessed using the Mini-Mental State Examination. Results: There were no significant differences in cognitive score between the two centenarian birth cohorts. However, modest tendencies were seen towards better cognitive functioning for the centenarians in the 1905 cohort living at home compared to the home-dwelling ones in the 1895 cohort and worse cognitive performance for the centenarians in the 1905 group living in nursing homes compared to the nursing home dwellers in the 1895 cohort. Conclusion: The increasing number of centenarians may not entail larger proportions of cognitively impaired individuals in this extreme age group.

Sex differential in mortality trends of old-aged Danes: a nation wide study of age, period and cohort effects

Objective Over the last half century the mortality rates in Denmark for females above age 80 have declined dramatically whereas the decline for males have been modest, resulting in a change in sex-ratio for centenarians from 2 to 5. Here we investigate whether this mortality pattern is mainly explained by period effects, cohort effects or both. This can provide clues for where to search for causes behind the changes in sex differential in mortality seen in many Western countries during the last decades. Methods Age-period-cohort study of mortality for all Danish women and men aged 79–98 during the period 1949–2006. Outcome measures Relative risks for deaths and second order differences for exploration of the nonlinear variation. Results Both the overall trends in mortality differences and the fluctuations in mortality for both men and women were better explained by period effects than by cohort effects. The observed rates were better described by the age, period and cohort model than by other models. Conclusions Our results suggest that causes for both the overall increased difference in mortality and the short term fluctuations in mortality rates are primarily to be found in the period dimension. Cohort effects on the mortality of the oldest Danish women and men played a significant but minor role compared to period effects.

The Danish Cerebral Palsy Follow-up Program

Aim of database The Danish Cerebral Palsy Follow-up Program is a combined follow-up program and national clinical quality database that aims to monitor and improve the quality of health care for children with cerebral palsy (CP). Study population The database includes children with CP aged 0–15 years and children with symptoms of CP aged 0–5 years. Main variables In the follow-up program, the children are offered examinations throughout their childhood by orthopedic surgeons, physiotherapists, occupational therapists, and pediatricians. Examinations of gross and fine motor function, manual ability, muscle tone, passive range of motion, use of orthotics, and assistive devices are performed once a year; radiographic examination of the hips is planned based on the child’s age and gross motor function; and the diagnosis is performed once before the age of 5 years. Six indicators were developed based on scientific literature and consensus in the steering committee, and their calculation is based on the following four main variables: radiographic examination of the hip, gross motor function, manual ability, and diagnosis. Descriptive data The 2014 annual report includes results of the quality indicators in three of five regions in Denmark comprising 432 children with CP, corresponding to a coverage of 82% of the expected population. Conclusion The Danish Cerebral Palsy Follow-up Program is currently under development as a national clinical quality database in Denmark. The database holds potential for research in prevalence, clinical characteristics of the population, and the effects of prevention and treatment.

Activities Of Daily Living At Admission To Acute Geriatric Departments Predicts Hip Fracture: A Nationwide Cohort Study

Introduction: Falls are the leading cause of fatal and non-fatal unintentional injuries in older people. Despite overwhelming evidence for strength/balance training, adherence to both group and home-exercise programmes is often poor1. A novel approach is the use of home-based, strength and balance video-games (EXERGAMES) but data from randomized controlled trials are limited2. The aim of this study was to test whether a 12 week EXERGAMES home-based intervention, co-developed with older adults and therapists, can improve the risk of falling [by Berg Balance Scale (BBS)] in older adults living in sheltered housing. Methods: We conducted a two-site (Manchester/Glasgow) cluster RCT. Twelve sheltered housing facilities were randomised (1:1) to either a 12wk standard care plus 3 times/ week EXERGAMES physiotherapist one-to-one intervention (n=56) or standard care (control group n=50). Standard care involved the provision of a home exercise booklet (standard approach for those unable/unwilling to attend group exercise programmes in the community). Results: A total of 106 older adults (83F, 23M) with a mean age of 77.8y (SD 10.2; range 55-101y), were recruited for the study. A total of 91 (86%) participants completed all study visits. Over 12 weeks the EXERGAMES intervention had a significant positive impact on BBS [p=0.003; mean (SD), 44.6 (10.7) (EXERGAMES) vs. 37.6 (14.9) (Control)]. The mean change of BBS from baseline was 2.9 (8.5) for the EXERGAMES and -2.8 (6.5) for the control group. The estimated increase in BBS score due to EXERGAMES was 6.2 (95% CI 2.4 to 9.9) which is greater than the minimal detectable change for the scale of 4.93. Conclusions: Balance, and thus risk of falling, can be improved through a 12wk physiotherapy led EXERGAMES programme. This type of home based intervention could be considered as an effective alternative to traditional falls prevention exercise regimes to support outcomes for patients.