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Table 1 Outcome Measure of the MOBILE trial

From: Mobility enhancement among older adults 75 + in rural areas: Study protocol of the MOBILE randomized controlled trial

Outcome Measure

Operationalisation (Type of assessment)

Times of assessment

Ref

Main Outcome

 

T0

T1

T2

T3

T4

 

 Time out-of-home

GPS tracker for seven consecutive days

S

S

S

-

-

[25]

Secondary Outcomes

 Life-Space parameter

Aggregated GPS data (i.e. convex hull)

S

S

S

-

-

[25]

 Self-perceived life-space

LSA-D

H

H

H

T

T

[6]

 Physical activity

IPAQ

H

H

H

-

-

[29]

 Depressive symptoms

GDS-12R

H

-

H

-

-

[30]

 Health Status

SF-12

H

H

H

-

T

[32]

 Frailty

Frailty-phenotype Fried

H

-

H

-

T

[34]

Mediator variables

 Goal attainment

Selected items from SOC-questionnaires

H

H

H

-

-

[46]

 Habits

4 items from SRHI

H

H

H

-

-

[47]

 Lifestyle chance

Action and coping planning, adapted from Schwarzer et al. 2008

H

H

H

-

-

[48]

 Balance confidence

ABC-6

H

-

H

-

-

[49]

 Health literacy

HLS-EU-Q16

H

-

H

T

T

[50]

 Views on ageing

Adapted from DEAS survey

H

-

H

-

-

[51]

 Connection to place

Selected items from housing enabler questionnaires

H

-

-

-

-

[52]

 Access to health care

Own items

H

-

-

-

-

-

 Utilization of health care

Own items

H

-

-

-

-

-

 Connection to neighbourhood

Selected items from DEAS survey

H

-

-

-

-

[53]

 Social network

Adapted from SHARE survey

H

-

H

-

-

 

 Loneliness

UCLA Three-Item Loneliness Scale

H

-

H

-

-

[54]

 Social Participation

Own items, adapted from SHARE survey

H

-

H

T

T

[51]

Covariates

 Sociodemographic data

Age, gender education level, level of care, living arrangements

H

-

-

-

-

-

 Physical performance

DEMMI

H

-

H

-

-

[55]

 Hand grip

Gauged Hand grip dynamometer, Sahean SH5001

H

-

H

-

-

-

 History of falls

Single-item question

H

H

H

T

T

-

 Utilization of assistive devices

Own questions, adapted from Baker, 2003

H

-

-

-

-

[6]

 Cognition

Mini-Cog

H

-

-

-

-

[56]

 Corona

Covid-19 history, vaccination status, anxiety, impact on daily life (own items, single-questions)

H

-

-

-

-

-

 Living surroundings, observation by interviewer

Type of house, stairs in front or within the building, pavement

H

-

-

-

-

-

  1. H, Home based interview CAPI, S self-assessment of GPS-Data with study mobile phone, T Telephone-based interview CATI, T0 Baseline measurement, T1 one months after baseline, T2 three months after baseline, T3 6 months after baseline, T4 12 months after baseline, Ref. reference, GPS Global Positioning System, LSA-D German version of the University of Alabama Life-Space Assessment, IPAQ International Physical Activity Questionnaire, GDS-12R short residential Version of the Geriatric Depression Scale, SF-12 The Short Form Health Survey, SOC Selection, Optimization, and Compensation, SRHI Self-Report Index of Habit Strength, ABC-6 Activity-specific Balance Confidence scale HLS-EU-Q16 Health Literacy Scale, 16 items, DEAS German Ageing Study / Deutscher Alterssurvey, SHARE The Survey of Health, Ageing and Retirement in Europe, DEMMI De Morton Mobility Index, Mini-Cog Screening for Cognitive Impairment in Older Adults
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BMC Geriatrics

ISSN: 1471-2318

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