Use of SMS-linked electronic surveys for COVID-19 case investigation and contact tracing - Marin County, CA, USA
© 2021 Published by Elsevier Ltd on behalf of The Royal Society for Public Health..
OBJECTIVES: We sought to quantify the proportion of contacts reported by persons with COVID-19 through a short message service (SMS)-linked survey in comparison to the proportion of contacts reported during a follow-up phone-interview. We also sought to assess improvement in contact tracing timeliness associated with sending SMS-linked surveys.
STUDY DESIGN: During December 4-15, 2020, persons identified as COVID-19 cases whose data was entered into Marin County's contact tracing database on even days received a SMS-linked survey and persons whose data was entered on odd days did not; all were called for case investigation and contact tracing. Chi-square test and Fisher's exact test were used to compare demographic data. Chi-square test was used to contrast categorical outcomes, and Wilcoxon's rank-sum test was used for continuous outcomes.
RESULTS: Among 350 SMS-linked survey recipients, 85 (24%) responded and 4 (1%) reported contacts using the survey; an additional 303 contacts were reported during phone interviews. Without phone interviews, 99% of reported contacts would have been missed. There was no meaningful difference between study arms in the proportion of contacts notified within 48 h.
CONCLUSIONS: This SMS-linked survey had low participation and was not useful for identifying contacts. Phone interviews remained crucial for COVID-19 contact tracing.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:2 |
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| Enthalten in: |
Public health in practice (Oxford, England) - 2(2021) vom: 17. Nov., Seite 100170 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Janssen, Julia M [VerfasserIn] |
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| Links: |
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| Themen: |
COVID-19 |
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| Anmerkungen: |
Date Revised 25.04.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.puhip.2021.100170 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM328903264 |
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| 500 | |a Date Revised 25.04.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a © 2021 Published by Elsevier Ltd on behalf of The Royal Society for Public Health. | ||
| 520 | |a OBJECTIVES: We sought to quantify the proportion of contacts reported by persons with COVID-19 through a short message service (SMS)-linked survey in comparison to the proportion of contacts reported during a follow-up phone-interview. We also sought to assess improvement in contact tracing timeliness associated with sending SMS-linked surveys | ||
| 520 | |a STUDY DESIGN: During December 4-15, 2020, persons identified as COVID-19 cases whose data was entered into Marin County's contact tracing database on even days received a SMS-linked survey and persons whose data was entered on odd days did not; all were called for case investigation and contact tracing. Chi-square test and Fisher's exact test were used to compare demographic data. Chi-square test was used to contrast categorical outcomes, and Wilcoxon's rank-sum test was used for continuous outcomes | ||
| 520 | |a RESULTS: Among 350 SMS-linked survey recipients, 85 (24%) responded and 4 (1%) reported contacts using the survey; an additional 303 contacts were reported during phone interviews. Without phone interviews, 99% of reported contacts would have been missed. There was no meaningful difference between study arms in the proportion of contacts notified within 48 h | ||
| 520 | |a CONCLUSIONS: This SMS-linked survey had low participation and was not useful for identifying contacts. Phone interviews remained crucial for COVID-19 contact tracing | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a COVID-19 | |
| 650 | 4 | |a Case investigation | |
| 650 | 4 | |a Contact tracing | |
| 650 | 4 | |a Short message service (SMS) | |
| 650 | 4 | |a Surveys | |
| 700 | 1 | |a McGrath, Alana |e verfasserin |4 aut | |
| 700 | 1 | |a Ereman, Rochelle |e verfasserin |4 aut | |
| 700 | 1 | |a Moonan, Patrick K |e verfasserin |4 aut | |
| 700 | 1 | |a Oeltmann, John E |e verfasserin |4 aut | |
| 700 | 1 | |a Willis, Matthew |e verfasserin |4 aut | |
| 700 | 1 | |a McCurdy, Stephen A |e verfasserin |4 aut | |
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