Ancillary Studies

LASA Ancillary Studies

Several ancillary studies have been performed among subsamples of LASA participants to enrich the data from regular measurement waves, with the purpose to answer specific research questions. For example, a selection of respondents have been followed more regularly across a span of six years (1992-1998), because 3-yearly intervals were deemed too long to capture the natural course of depression.

Diversity of issues
Several other ancillary studies among selections of participants have focused on a diversity of issues, i.e., the structure and function of the social network and their network members, adaptation to widowhood in widowed participants, precursors and consequences of (recurrent) falling, family caregiving to older adults, god image, lifestyle factors, end of life, Attention-Deficit/Hyperactivity Disorder, osteoarthritis, loneliness behavior, perceived control in health care, nutrition and food-related behavior, and predictors of hearing help-seeking behavior.

Although participation in one or more of these ancillary studies must have been burdensome to participants, we did not find indications that this has led to increased drop-out later on during follow-up by those who were included in them.

An overview of the ancillary studies conducted in LASA since 1992 is presented below.

Overview of ancillary studies in LASA since 1992

Year Ancillary study (duration)
2017 MICrobiota, Malnutrition, and Appetite in Community-dwelling older adults 2017-2018 (the MicMAC study) (2 yrs)
2015 Accelerometry: Study 4, using Actigraph GT3X by participants of the LASA-study
(2 yrs)
2014 Nutrition and Food-related behaviour
2014 Hearing help seeking
2014 Attention Deficit Hyperactivity Disorder (ADHD) q*
2013 Perceived control in health care and scale
2013 Care-related mastery
2012 Accelerometry: Study 3, using Actigraph GT3X by participants of the EPOSA-study
2012 Care of frail older adults (more information in Dutch, pdf)
2010 Hair cortisol
2010 Osteo-arthritis (European Study EPOSA, 1-yr follow-up
2010 Quantitative ultrasound measurement and fall calendar
2010 Accelerometry: Study 2, accelerator measurement of activity
2010 ADHD diagnostic interviews
2010 End-of-life care: interviews with proxies (see also 2000)
2010 Loneliness, age discrimination (self-administered)
2008 Activities partners q*
2007 Accelerometry: Study 1, using Actigraph GT1M as part of the Lifestyle study (see
below)
2007 Lifestyle study
2005 Quality of life q*
2005 Personality and depression
2005 Religion and personality
2004 Self-administered questionnaire general
2002 Retirement q*
2001 PET, MRI and cognition
2001 Diversity in late life (external link)
2001 Family caregiving to older adults (2 yrs)
2000 End-of-life care: interviews with proxies (see also 2010)
2000 Transitions in care
2000 Falls: prevention of fall accidents
1999 Neuropsychology
1998 Hearing q*
1998 Relocation q*
1998 Friendship q*
1998 Fast track (documentation in preparation)
1995 DXA
1995 Falls and fractures
1992 Social network members (LSN Network study) (1.5 yrs)
1992 Widowhood (WALS) (5 yrs)
1992 Course of depression and anxiety (6 yrs)

* qualitative study