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. 2020 Dec 10;128(12):127007. doi: 10.1289/EHP6340

Figure 5.

Figure 5 is a set of three error bar graphs titled Percentage African American, Percentage below poverty, and Percentage live alone plotting odds ratios between indoor Discomfort Index and health outcomes, per 5 degree Celsius increase, ranging from 1.0 to 2.0 in increments of 0.5 (left y-axis) and Diseases of the circulatory system deaths, heat-related illnesses deaths, diseases of the circulatory system emergency hospital admission, and heat-related illnesses emergency hospital admission (right y-axis) across less than or equal to 60 percent African American and greater than 60 percent African American; less than or equal to 15 percent below poverty and greater than 15 percent below poverty; and less than or equal to 24 percent live alone and greater than 24 percent live alone (x-axis), respectively.

Estimated ORs and 95% CIs per 5°C increase between 3-d moving averages of maximum indoor DI and health outcomes stratified by U.S. Census block group (CBG) socio-demographic factors for City of Houston residents (June–September, 2000–2015). ORs were derived from single-exposure, time-stratified case-crossover models (conditional logistic regression) that matched on CBG of subject residence, year, month, and weekday of the adverse health event. Models controlled for maximum ambient temperature and maximum ambient dew point temperature (°C) with cubic polynomials, federal holidays, day of the warm season, modeled as a smooth function with monthly knots across the summer season (June–September). An interaction term between year and day of the warm season was also included to capture between-year differences. Mortality data were available 2000–2015; EHA data were available 2004–2013. See Table 4 for corresponding numeric data. Note: CI, confidence interval; CIRC, circulatory diagnoses; DI, discomfort index; EHA, emergency hospital admissions; HEAT, heat-related diagnoses; OR, odds ratio.