Online Program

Targeting Interventions for Youth and Pregnant Women with Chlamydia through Multilevel Modeling and Mapping Spatio-Temporal Trends

Sunday, November 1, 2015

Amy B. Curtis, PhD, MPH, Interdisciplinary Health Sciences PhD Program/Health Data Research Analysis and Mapping (HDReAM) Center, Western Michigan University, Kalamazoo, MI
Kathleen Baker, PhD, Department of Geography/Health Data Research Analysis and Mapping (HDReAM) Center, Western Michigan University, Kalamazoo, MI
Claudio Owusu, BS, Geography and HDReAM Center, Western Michigan University, Kalamazoo
Rajib Paul, PhD, Department of Statistics/Health Data Research Analysis and Mapping (HDReAM) Center, Western Michigan University, Kalamazoo, MI
Yasaman Back, MS, Kalamazoo County Health and Community Services, Kalamazoo, MI
Background: Chlamydia incidence has increased in Kalamazoo County, MI, since the late 1990s and has now reached a rate of nearly twice the state average. Rates in the 15-24 year olds are particularly high, as are rates of infant morbidity and mortality, particularly in disadvantaged populations. Also, sexually transmitted infections (STI) can co-occur in this population. The purpose of this analysis was to combine individual level records from several different data sources with census tract level socioeconomic status and built environment to create a multilevel model and geographic information systems (GIS) maps of spatio-temporal trends in the disease to tailor local resource planning and intervention placement to specific populations, including youth and pregnant woman. Methods: Using multilevel statistical modeling and GIS maps, we analyzed nine years (2006-14) of chlamydia laboratory cases reported to the local health department and reported chlamydia cases among women giving birth (2006-2012 vital birth records) by race, age and gender (individual-level), and poverty, education, unemployment and urban/rural characteristics at the census tract level (U.S. Census) to identify spatio-temporal patterns. Results: Over 13,000 chlamydia cases were geocoded. Those less than 18 accounted for over 1,000 cases in 2012-14. Of these cases, 70% were within 1 of the 12 school districts in the county.  In addition, 7specific geographic hotspots for chlamydia were identified among those giving birth. Conclusions: Through examination of combined data sources, including vital records, laboratory results, and census data, we were able to obtain detailed information to target STI interventions across different high-risk populations.

Learning Areas:

Assessment of individual and community needs for health education
Planning of health education strategies, interventions, and programs
Public health or related research

Learning Objectives:
Explain how to combine existing data and advanced data analytical techniques to tailor countywide population-specific STI prevention and control efforts among youth and pregnant women. Describe spatio-temporal chlamydia patterns among youth and pregnant women in one Southwest Michigan county during 2006-2013.

Keyword(s): Youth, STDs/STI

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am an epidemiologist and director of the Health Data Research, Analysis and Mapping (HDReAM) Center with over 20 years of experience analyzing large epidemiologic data sets, including STI-related data as a senior epidemiologist at the CDC in the Division of HIV/AIDS Prevention.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.