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Using Mobile Phone-based Text Message to Recruit Representative Samples: Assessment of a Cross-Sectional Survey about the COVID-19 Vaccine Hesitation

Article scientifique 2022 Anglais

Résumé

Abstract Background Limited research has examined mobile phone-based platforms for survey recruitment, especially during the COVID-19 pandemic in Brazil. Our objective was to investigate the feasibility and representativeness of mobile phone-based advertisement during a preliminary study about COVID-19 vaccine hesitation in Brazil. Moreover, we evaluate whether the older population can be reached through mobile phone-based platforms of the survey. Methods We conducted a study in December 2021 based on a preliminary survey about the COVID-19 vaccine hesitation in Assis, Brazil, Sao Paulo state. From a list of the adult population hesitant for the second dose of the COVID-19 vaccine, we sent a mobile phone-based advertisement inviting the participants to answer the survey for one week. The respondent’s data were collected in a Google form platform. The comparison between the target population and the respondents was made using the Chi-squared test and the Welch’s test, using a P-value of .05 as significative. Results The response rate was 9.99% after one week. The mean age of the respondent group was 33.97 (SD 14.99) and 35.05 (SD 14.19) of the population, with a P-value of .192 and a Cohen’s d coefficient of 0.0754, corresponding to a small effect size between groups. We demonstrate that the mobile phone-based survey is a feasible and representative strategy during the pandemics in Brazil. Moreover, the older population respondent was representative. Conclusion We achieved a representative sample of respondents using the mobile phone-based survey in Brazil. Furthermore, it was representative in all sociodemographic and health characteristics assessed. Finally, these findings suggest the method is a highly feasible and economical means of recruiting for survey research.

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Filho, C., Neto, C., Sartorão, A., Terribile, D., Mello, R., Mello, B., Zoqui, M., Duarte, D., Cachoni, L., Bisseto, V., Ribeiro, E. (2022). Using Mobile Phone-based Text Message to Recruit Representative Samples: Assessment of a Cross-Sectional Survey about the COVID-19 Vaccine Hesitation. https://doi.org/10.1101/2022.01.15.22269259

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Auteur(s)

Carlos Izaias Sartorão Filho Carlos Izaias Sartorão Neto Ana Luísa Varrone Sartorão Diogo Coutinho Terribile Rafael de Mello Beatriz Balsimelli de Mello Mariana Costa Zoqui Douglas Otomo Duarte Lara Escobar Gavião Cachoni V C Q Bisseto Edy Alyson Ribeiro

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