Association between COVID-19 vaccination rates and the Australian ‘Million Dollar Vax’ competition: an observational study
Objective To examine the association between financial incentives from entry into a vaccine competition with the probability of vaccination for COVID-19.Design A cross-sectional study with adjustment for covariates using logistic regression.Setting October and November 2021, Australia.Participants 2...
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| Format: | Article |
| Language: | English |
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BMJ Publishing Group
2022-08-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/12/8/e062307.full |
| _version_ | 1811339995737227264 |
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| author | Anthony Scott Dajung Jun |
| author_facet | Anthony Scott Dajung Jun |
| author_sort | Anthony Scott |
| collection | DOAJ |
| description | Objective To examine the association between financial incentives from entry into a vaccine competition with the probability of vaccination for COVID-19.Design A cross-sectional study with adjustment for covariates using logistic regression.Setting October and November 2021, Australia.Participants 2375 respondents of the Taking the Pulse of the Nation survey.Primary and secondary outcome measures The proportion of respondents who had any vaccination, a first dose only, or second dose after the competition opened.Results Those who entered the competition were 2.27 (95% CI 1.73 to 2.99) times more likely to be vaccinated after the competition opened on 1 October than those who did not enter—an increase in the probability of having any dose of 0.16 (95 % CI 0.10 to 0.21) percentage points. This increase was mostly driven by those receiving second doses. Entrants were 2.39 (95% CI 1.80 to 3.17) times more likely to receive their second dose after the competition opened.Conclusions Those who entered the Million Dollar Vax competition were more likely to have a vaccination after the competition opened compared with those who did not enter the competition, with this effect dominated by those receiving second doses. |
| first_indexed | 2024-04-13T18:35:49Z |
| format | Article |
| id | doaj.art-074c967a20304adc9ddf329750bd034a |
| institution | Directory Open Access Journal |
| issn | 2044-6055 |
| language | English |
| last_indexed | 2024-04-13T18:35:49Z |
| publishDate | 2022-08-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj.art-074c967a20304adc9ddf329750bd034a2022-12-22T02:34:53ZengBMJ Publishing GroupBMJ Open2044-60552022-08-0112810.1136/bmjopen-2022-062307Association between COVID-19 vaccination rates and the Australian ‘Million Dollar Vax’ competition: an observational studyAnthony Scott0Dajung Jun1Epidemiology and Demography, KEMRI-Wellcome Trust Research Programme, Kilifi, KenyaMelbourne Institute: Applied Economic and Social Research, Faculty of Business and Economics, The University of Melbourne, Parkville, Victoria, AustraliaObjective To examine the association between financial incentives from entry into a vaccine competition with the probability of vaccination for COVID-19.Design A cross-sectional study with adjustment for covariates using logistic regression.Setting October and November 2021, Australia.Participants 2375 respondents of the Taking the Pulse of the Nation survey.Primary and secondary outcome measures The proportion of respondents who had any vaccination, a first dose only, or second dose after the competition opened.Results Those who entered the competition were 2.27 (95% CI 1.73 to 2.99) times more likely to be vaccinated after the competition opened on 1 October than those who did not enter—an increase in the probability of having any dose of 0.16 (95 % CI 0.10 to 0.21) percentage points. This increase was mostly driven by those receiving second doses. Entrants were 2.39 (95% CI 1.80 to 3.17) times more likely to receive their second dose after the competition opened.Conclusions Those who entered the Million Dollar Vax competition were more likely to have a vaccination after the competition opened compared with those who did not enter the competition, with this effect dominated by those receiving second doses.https://bmjopen.bmj.com/content/12/8/e062307.full |
| spellingShingle | Anthony Scott Dajung Jun Association between COVID-19 vaccination rates and the Australian ‘Million Dollar Vax’ competition: an observational study BMJ Open |
| title | Association between COVID-19 vaccination rates and the Australian ‘Million Dollar Vax’ competition: an observational study |
| title_full | Association between COVID-19 vaccination rates and the Australian ‘Million Dollar Vax’ competition: an observational study |
| title_fullStr | Association between COVID-19 vaccination rates and the Australian ‘Million Dollar Vax’ competition: an observational study |
| title_full_unstemmed | Association between COVID-19 vaccination rates and the Australian ‘Million Dollar Vax’ competition: an observational study |
| title_short | Association between COVID-19 vaccination rates and the Australian ‘Million Dollar Vax’ competition: an observational study |
| title_sort | association between covid 19 vaccination rates and the australian million dollar vax competition an observational study |
| url | https://bmjopen.bmj.com/content/12/8/e062307.full |
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