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Representativeness

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Poursuite des entretiens/examens en 2021

Nous sommes heureux de vous annoncer la poursuite des entretiens/examens de la Cohorte Lc65+ pour les personnes nées entre 1944 et 1948.

Toutes les mesures de protection définies par l’Office fédéral de la santé publique sont en place pour vous accueillir.

Pour les personnes nées entre 1934 et 1943, le suivi par questionnaire postal se poursuit comme d’habitude.

 

Among individuals randomly selected for sample 1 (2004), sample 2 (2009) and sample 3 (2014), participants and non-participants showed no significant differences in the sex distribution or birth year distribution by sex.

Comparison of sex and birth year by sex between Lc65+ participants and non-participants, amongst 1'564 drawn in the first sample (2004) :

 

Comparison of sex and birth year by sex between Lc65+ participants and non-participants, amongst 1'489 drawn in the second sample (2009)1 :

 

Comparison of sex and birth year by sex between Lc65+ participants and non-participants, amongst 1'678 drawn in the third sample (2014)1 :

 

Sample 1 (2004) :

Although variables were not defined identically in the Lc65+ study and references that allow some comparison with the same age in the overall Lausanne population, analyses of sample1 indicated a very similar distribution of:

  • nationality and marital status compared to aggregate data from the Lausanne population’s office;
  • nationality, marital status, country of birth, living arrangement, and professional activity compared to aggregate data from the 2000 Federal population census. However, we noticed an over-representation of subjects with university education in the Lc65+ cohort (11.1% versus 6.5% in the general population); a clearly higher proportion of missing data for this characteristic in the Federal census (16.2% versus 0.6% in the Lc65+ study) makes interpreting this difference difficult.

Comparison between Lc65+ participants in 2004 and the Lausanne population of the same age in the city Population Office’s file


Comparison between Lc65+ participants in 2004 and the Lausanne population of the same age in the 2000 Federal population census

 


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Lc65+ study

The Lausanne cohort 65+ (Lc65+) study is a research platform that aims to gain new knowledge on frailty in the general population from the age of 65 years onwards. Manifestations of frailty, medical and psycho-social risk factors, and the effects of frailty on health, functional status, and use of health services are central to the research conducted in the Lc65+ project.

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