Journal Article

Mobile Phone Syndromic Surveillance for Respiratory Conditions in an Emergency (COVID-19) Context in Colombia: Representative Survey Design

Chavez Chamorro, Mariangela, Franco-Suarez, Oscar, Agudelo-Londoño, Sandra, Gibson, Dustin, Maniar, Vidhi, Mejía-Rocha, Marino, Cardona, Jaime, Guzman-Tordecilla, Deivis Nicolas, Aya Pastrana, Nathaly, Vecino-Ortiz, Andres I, Rodríguez-Patarroyo, Mariana

2024

Overview

Syndromic surveillance for respiratory infections such as COVID-19 is a crucial part of the public health surveillance toolkit as it allows decision makers to detect and prepare for new waves of the disease in advance. However, it is labor-intensive, costly, and increases exposure to survey personnel. This study assesses the feasibility of conducting a mobile phone-based respiratory syndromic surveillance program in a middle-income country during a public health emergency, providing data to support the inclusion of this method in the standard infection control protocols at the population level. This study aims to assess the feasibility of a national active syndromic surveillance system for COVID-19 disease in Colombia. In total, 2 pilots of syndromic mobile phone surveys (MPSs) were deployed using interactive voice response technology in Colombia (367 complete surveys in March 2022 and 451 complete surveys in April and May 2022). Respondents aged 18 years and older were sampled using random digit dialing, and after obtaining consent, they were sent a 10-minute survey with modules on sociodemographic status, respiratory symptoms, past exposure to COVID-19 infection and vaccination status, preferences about COVID-19 vaccination, and information source for COVID-19. Pilot 1 used a nationally representative sample while pilot 2 used quota sampling to yield representative results at the regional level. In this work, we assessed the performance characteristics of the survey pilots and compared the demographic information collected with a nationally representative household survey. For both pilots, contact rates were between 1% and 2%, while participation rates were above 80%. The results revealed that younger, female, and higher educated participants were more likely to participate in the syndromic survey. Survey rates as well as demographics, COVID-19 vaccination status, and prevalence of respiratory symptoms are reported for both pilots. We found that respondents of the MPSs are more likely to be younger and female. In a COVID-19 pandemic setting, using an interactive voice response MPS to conduct syndromic surveillance may be a transformational, low-risk, and feasible method to detect outbreaks. This evaluation expects to provide a path forward to the inclusion of MPSs as a traditional surveillance method.

• Publisher: Journal of Medical Internet Research,Gunther Eysenbach MD MPH, Associate Professor,JMIR Publications
• Subject: Adolescent / Adult / Aged / Cell Phone - statistics & numerical data / Cellular telephones / Colombia / Colombia - epidemiology / Consent / COVID-19 / COVID-19 - epidemiology / COVID-19 - prevention & control / COVID-19 vaccines / Decision makers / Demographic aspects / Demographics / Demography / Disease / Disease control / Electronic surveillance / Epidemics / Feasibility / Feasibility Studies / Female / Females / Health aspects / Health promotion / Health surveillance / Humans / Immunization / Infections / Interactive voice response / Interviews / Male / Medical decision making / Methods / Middle Aged / Mobile applications / Mobile phones / Pandemics / Pilots and pilotage / Polls & surveys / Population / Public health / Quality of life / Respiratory diseases / Respiratory tract diseases / Respondents / Responses / Risk factors / Sample size / Sampling / SARS-CoV-2 / Sentinel health events / Smart phones / Smartphones / Sociodemographics / Surveillance / Surveillance systems / Surveys / Surveys and Questionnaires / Symptoms / Telephone communications / Telephone surveys / Telephones / Vaccination / Young Adult