Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort
Abstract Objective We conducted a trial embedded within the German National Cohort comparing the responses to study invitations sent in recycled envelopes of grey color vs. envelopes of white color. We analyzed paradata for reactions to the invitation letters by potential subjects, the duration betw...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2019-07-01
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| Series: | BMC Research Notes |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s13104-019-4510-y |
| _version_ | 1818302381133135872 |
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| author | Malte Langeheine Hermann Pohlabeln Wolfgang Ahrens Kathrin Günther Stefan Rach |
| author_facet | Malte Langeheine Hermann Pohlabeln Wolfgang Ahrens Kathrin Günther Stefan Rach |
| author_sort | Malte Langeheine |
| collection | DOAJ |
| description | Abstract Objective We conducted a trial embedded within the German National Cohort comparing the responses to study invitations sent in recycled envelopes of grey color vs. envelopes of white color. We analyzed paradata for reactions to the invitation letters by potential subjects, the duration between mailing date of the invitation and active responses, and study participation. Results Grey envelopes only slightly increased the chance of active responses (OR 1.16, 95% CI 0.83, 1.62) to the invitation letter. Potential study subjects with German nationality (OR 3.75, 95% CI 2.07, 7.66) and age groups above 50 years (50–59: OR 1.78, 95% CI 1.19, 2.69; 60–69: OR 2.25, 95% CI 1.48, 3.43) were more likely to actively respond to the invitation letter. The duration between mailing date of the invitation and active response was not associated with envelope color, sex, nationality, or age. Our trial replicates previous observations that the color of the envelope of a study invitation does not influence the likelihood of an active response or study participation. |
| first_indexed | 2024-12-13T05:38:00Z |
| format | Article |
| id | doaj.art-b49bf48ebdd84eb6b568cce9ae0b0071 |
| institution | Directory Open Access Journal |
| issn | 1756-0500 |
| language | English |
| last_indexed | 2024-12-13T05:38:00Z |
| publishDate | 2019-07-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Research Notes |
| spelling | doaj.art-b49bf48ebdd84eb6b568cce9ae0b00712022-12-21T23:57:51ZengBMCBMC Research Notes1756-05002019-07-011211510.1186/s13104-019-4510-yStudy invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National CohortMalte Langeheine0Hermann Pohlabeln1Wolfgang Ahrens2Kathrin Günther3Stefan Rach4Leibniz Institute for Prevention Research and Epidemiology-BIPSLeibniz Institute for Prevention Research and Epidemiology-BIPSLeibniz Institute for Prevention Research and Epidemiology-BIPSLeibniz Institute for Prevention Research and Epidemiology-BIPSLeibniz Institute for Prevention Research and Epidemiology-BIPSAbstract Objective We conducted a trial embedded within the German National Cohort comparing the responses to study invitations sent in recycled envelopes of grey color vs. envelopes of white color. We analyzed paradata for reactions to the invitation letters by potential subjects, the duration between mailing date of the invitation and active responses, and study participation. Results Grey envelopes only slightly increased the chance of active responses (OR 1.16, 95% CI 0.83, 1.62) to the invitation letter. Potential study subjects with German nationality (OR 3.75, 95% CI 2.07, 7.66) and age groups above 50 years (50–59: OR 1.78, 95% CI 1.19, 2.69; 60–69: OR 2.25, 95% CI 1.48, 3.43) were more likely to actively respond to the invitation letter. The duration between mailing date of the invitation and active response was not associated with envelope color, sex, nationality, or age. Our trial replicates previous observations that the color of the envelope of a study invitation does not influence the likelihood of an active response or study participation.http://link.springer.com/article/10.1186/s13104-019-4510-yStudy participationTrialRecycled envelopesGerman National CohortParadata |
| spellingShingle | Malte Langeheine Hermann Pohlabeln Wolfgang Ahrens Kathrin Günther Stefan Rach Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort BMC Research Notes Study participation Trial Recycled envelopes German National Cohort Paradata |
| title | Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort |
| title_full | Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort |
| title_fullStr | Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort |
| title_full_unstemmed | Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort |
| title_short | Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort |
| title_sort | study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the german national cohort |
| topic | Study participation Trial Recycled envelopes German National Cohort Paradata |
| url | http://link.springer.com/article/10.1186/s13104-019-4510-y |
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