Recruitment and Consent in an observational study

Michaela Goodwin; William Whittaker; Tanya Walsh; Richard Emsley; Matt Sutton; Martin Tickle; Michael  Kelly; Iain Pretty

doi:10.1922/CDH_000682020Goodwin06

Recruitment and Consent in an observational study

Michaela Goodwin, William Whittaker, Tanya Walsh, Richard Emsley, Matt Sutton, Martin Tickle, Michael Kelly, Iain Pretty

Research output: Contribution to journal › Article › peer-review

Abstract

Objective:The study sought to explore the consent rate and associated potential bias across a cohort in a large longitudinal population based study. Research design: Data were taken from a study designed to examine the effects of the reintroduction of community water fluoridation on children’s oral health over a five-year period. Children were recruited from a fluoridated and non-fluoridated area in Cumbria, referred to as Group 1 and Group 2. Results: Data were available for 3138 individuals. The consent rate was 12.91 percentage points lower in Group 2 than Group 1 (95% CI -16.27 to -9.56, p<0.001). The population in Group 2 was more deprived than Group 1 before consent was taken. Consent was not associated with deprivation in either group. Conclusion: The cohort appeared to be unaffected by IMD-related non-consent. However there was a difference in consent rate between the two groups. With the population in Group 1 being more deprived than Group 2, it will be important to incorporate these differences into the analysis at the end of this longitudinal study.

Original language	English
Journal	Community Dental Health
DOIs	https://doi.org/10.1922/CDH_000682020Goodwin06
Publication status	Accepted/In press - 3 May 2020

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@article{e129e5d7e7284193820adfbc3fe1baf9,

title = "Recruitment and Consent in an observational study",

abstract = "Objective:The study sought to explore the consent rate and associated potential bias across a cohort in a large longitudinal population based study. Research design: Data were taken from a study designed to examine the effects of the reintroduction of community water fluoridation on children{\textquoteright}s oral health over a five-year period. Children were recruited from a fluoridated and non-fluoridated area in Cumbria, referred to as Group 1 and Group 2. Results: Data were available for 3138 individuals. The consent rate was 12.91 percentage points lower in Group 2 than Group 1 (95% CI -16.27 to -9.56, p<0.001). The population in Group 2 was more deprived than Group 1 before consent was taken. Consent was not associated with deprivation in either group. Conclusion: The cohort appeared to be unaffected by IMD-related non-consent. However there was a difference in consent rate between the two groups. With the population in Group 1 being more deprived than Group 2, it will be important to incorporate these differences into the analysis at the end of this longitudinal study. ",

author = "Michaela Goodwin and William Whittaker and Tanya Walsh and Richard Emsley and Matt Sutton and Martin Tickle and Michael Kelly and Iain Pretty",

year = "2020",

month = may,

day = "3",

doi = "10.1922/CDH_000682020Goodwin06",

language = "English",

journal = "Community Dental Health",

issn = "2515-1746",

publisher = "FDI World Dental Press Ltd",

}

TY - JOUR

T1 - Recruitment and Consent in an observational study

AU - Goodwin, Michaela

AU - Whittaker, William

AU - Walsh, Tanya

AU - Emsley, Richard

AU - Sutton, Matt

AU - Tickle, Martin

AU - Kelly, Michael

AU - Pretty, Iain

PY - 2020/5/3

Y1 - 2020/5/3

N2 - Objective:The study sought to explore the consent rate and associated potential bias across a cohort in a large longitudinal population based study. Research design: Data were taken from a study designed to examine the effects of the reintroduction of community water fluoridation on children’s oral health over a five-year period. Children were recruited from a fluoridated and non-fluoridated area in Cumbria, referred to as Group 1 and Group 2. Results: Data were available for 3138 individuals. The consent rate was 12.91 percentage points lower in Group 2 than Group 1 (95% CI -16.27 to -9.56, p<0.001). The population in Group 2 was more deprived than Group 1 before consent was taken. Consent was not associated with deprivation in either group. Conclusion: The cohort appeared to be unaffected by IMD-related non-consent. However there was a difference in consent rate between the two groups. With the population in Group 1 being more deprived than Group 2, it will be important to incorporate these differences into the analysis at the end of this longitudinal study.

AB - Objective:The study sought to explore the consent rate and associated potential bias across a cohort in a large longitudinal population based study. Research design: Data were taken from a study designed to examine the effects of the reintroduction of community water fluoridation on children’s oral health over a five-year period. Children were recruited from a fluoridated and non-fluoridated area in Cumbria, referred to as Group 1 and Group 2. Results: Data were available for 3138 individuals. The consent rate was 12.91 percentage points lower in Group 2 than Group 1 (95% CI -16.27 to -9.56, p<0.001). The population in Group 2 was more deprived than Group 1 before consent was taken. Consent was not associated with deprivation in either group. Conclusion: The cohort appeared to be unaffected by IMD-related non-consent. However there was a difference in consent rate between the two groups. With the population in Group 1 being more deprived than Group 2, it will be important to incorporate these differences into the analysis at the end of this longitudinal study.

U2 - 10.1922/CDH_000682020Goodwin06

DO - 10.1922/CDH_000682020Goodwin06

M3 - Article

SN - 2515-1746

JO - Community Dental Health

JF - Community Dental Health

ER -

Recruitment and Consent in an observational study

Abstract

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