The Geography of Mental Health and General Wellness in Galveston Bay after Hurricane Ike: A Spatial Epidemiologic Study with Longitudinal Data

Oliver Gruebner, Sarah R. Lowe, Melissa Tracy, Magdalena Cerdá, Spruha Joshi, Fran H. Norris, Sandro Galea

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Objectives To demonstrate a spatial epidemiologic approach that could be used in the aftermath of disasters to (1) detect spatial clusters and (2) explore geographic heterogeneity in predictors for mental health and general wellness. Methods We used a cohort study of Hurricane Ike survivors (n=508) to assess the spatial distribution of postdisaster mental health wellness (most likely resilience trajectory for posttraumatic stress symptoms [PTSS] and depression) and general wellness (most likely resilience trajectory for PTSS, depression, functional impairment, and days of poor health) in Galveston, Texas. We applied the spatial scan statistic (SaTScan) and geographically weighted regression. Results We found spatial clusters of high likelihood wellness in areas north of Texas City and spatial concentrations of low likelihood wellness in Galveston Island. Geographic variation was found in predictors of wellness, showing increasing associations with both forms of wellness the closer respondents were located to Galveston City in Galveston Island. Conclusions Predictors for postdisaster wellness may manifest differently across geographic space with concentrations of lower likelihood wellness and increased associations with predictors in areas of higher exposure. Our approach could be used to inform geographically targeted interventions to promote mental health and general wellness in disaster-affected communities. (Disaster Med Public Health Preparedness. 2016;10:261-273)

Original languageEnglish
Pages (from-to)261-273
Number of pages13
JournalDisaster Medicine and Public Health Preparedness
Volume10
Issue number2
DOIs
StatePublished - 1 Apr 2016

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Cyclonic Storms
Geography
Disasters
Epidemiologic Studies
Mental Health
Islands
Depression
Survivors
Cohort Studies
Public Health
Health

Keywords

  • geographic mapping
  • mental disorders
  • natural disasters
  • post-traumatic stress disorders
  • psychological resilience

Cite this

Gruebner, Oliver ; Lowe, Sarah R. ; Tracy, Melissa ; Cerdá, Magdalena ; Joshi, Spruha ; Norris, Fran H. ; Galea, Sandro. / The Geography of Mental Health and General Wellness in Galveston Bay after Hurricane Ike : A Spatial Epidemiologic Study with Longitudinal Data. In: Disaster Medicine and Public Health Preparedness. 2016 ; Vol. 10, No. 2. pp. 261-273.
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The Geography of Mental Health and General Wellness in Galveston Bay after Hurricane Ike : A Spatial Epidemiologic Study with Longitudinal Data. / Gruebner, Oliver; Lowe, Sarah R.; Tracy, Melissa; Cerdá, Magdalena; Joshi, Spruha; Norris, Fran H.; Galea, Sandro.

In: Disaster Medicine and Public Health Preparedness, Vol. 10, No. 2, 01.04.2016, p. 261-273.

Research output: Contribution to journalArticle

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N2 - Objectives To demonstrate a spatial epidemiologic approach that could be used in the aftermath of disasters to (1) detect spatial clusters and (2) explore geographic heterogeneity in predictors for mental health and general wellness. Methods We used a cohort study of Hurricane Ike survivors (n=508) to assess the spatial distribution of postdisaster mental health wellness (most likely resilience trajectory for posttraumatic stress symptoms [PTSS] and depression) and general wellness (most likely resilience trajectory for PTSS, depression, functional impairment, and days of poor health) in Galveston, Texas. We applied the spatial scan statistic (SaTScan) and geographically weighted regression. Results We found spatial clusters of high likelihood wellness in areas north of Texas City and spatial concentrations of low likelihood wellness in Galveston Island. Geographic variation was found in predictors of wellness, showing increasing associations with both forms of wellness the closer respondents were located to Galveston City in Galveston Island. Conclusions Predictors for postdisaster wellness may manifest differently across geographic space with concentrations of lower likelihood wellness and increased associations with predictors in areas of higher exposure. Our approach could be used to inform geographically targeted interventions to promote mental health and general wellness in disaster-affected communities. (Disaster Med Public Health Preparedness. 2016;10:261-273)

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