Feasibility study of survey non-response in a random community sample of the very old population

Feasibility study of survey non-response in a random community sample of the very old population - NRW80+contact

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00010786

Enrollment

1800

Registered

2016-08-01

Start date

2016-08-13

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

communicative problems

Interventions

Group 1: Study population: residents of North Rhine-Westphalia aged 80 years or older. Sample: random sample of 1800 potential respondents from residential registers. Method: Advance letters, telephon

Eligibility

Sex/Gender

All

Age

80 Years to No maximum

Inclusion criteria

Inclusion criteria: Resident of North Rhine-Westphalia, 80 years or older

Exclusion criteria

Exclusion criteria: severe cognitive impairment; multiple senory impairment

Design outcomes

Primary

Measure	Time frame
Response rate; reasons for non-response	—

Secondary

Measure	Time frame
Adjustment of interview situation for social sciences survey research	—

Countries

Germany

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026