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. Author manuscript; available in PMC: 2024 Feb 1.
Published in final edited form as: Ann Epidemiol. 2022 Dec 5;78:1–8. doi: 10.1016/j.annepidem.2022.11.003

Table 3.

Stepwise logistic regression model estimating for the association between segregation measures and metabolic syndrome

Model 1 Model 2
With individual-level characteristics + Neighborhood-level characteristics
Odds ratio [95% confidence interval]
Formal measures of segregation
Evenness
 Q1, high evenness
 Q2 1.13 [0.81–1.59] 1.11 [0.79–1.55]
 Q3 1.27 [0.90–1.79] 1.24 [0.88–1.74]
 Q4, 1.02 [0.73–1.43] 0.98 [0.71–1.36]
 Q5: low evenness 1.30 [0.96–1.78] 1.22 [0.89–1.69]
P for trend .211 .438
 continuous (0.10-unit change) 1.02 [0.93–1.12] 1.00 [0.91–1.10]
Exposure
 Q1, low isolation
 Q2 1.33 [0.94–1.90] 1.31 [0.92–1.87]
 Q3 1.26 [0.92–1.73] 1.22 [0.88–1.67]
 Q4, 1.54 [1.09–2.17] 1.46[1.03–2.07]
 Q5: high isolation 2.13 [1.39–3.26] 2.00 [1.30–3.07]
 continuous (0.10-unit change) 1.11 [1.02–1.21] 1.09 [1.00–1.19]
P for trend .003 .008
Evenness, after controlling for exposure
 Q1: high evenness
 Q2 1.07 [0.78–1.47] 1.06 [0.77–1.47]
 Q3 1.29 [0.92–1.80] 1.28 [0.91–1.80]
 Q4, 0.91 [0.66–1.26] 0.91 [0.66–1.25]
 Q5: low evenness 1.19 [0.88–1.62] 1.18 [0.86–1.63]
 Continuous (0.10-unit change) 0.99 [0.90–1.09] 0.99 [0.90–1.09]
P for trend .538 .616
Exposure, after controlling for evenness
 Q1: high exposure
 Q2 1.34 [0.95–1.89] 1.34 [0.95–1.89]
 Q3 1.29 [0.95–1.76] 1.28 [0.94–1.75]
 Q4, 1.55 [1.10–2.18] 1.53 [1.08–2.17]
 Q5: low exposure 2.33 [1.52–3.57] 2.29 [1.49–3.52]
P for trend .006 .011
 Continuous (0.10-unit change 1.11 [1.02–1.21] 1.11 [1.02–1.21]
Proxy measures of segregation
ICE for income
 Q1, highest extreme concentration of disprivilege
 Q2 0.99 [0.75–1.31] 0.99 [0.75–1.31]
 Q3 0.93 [0.69–1.26] 0.95 [0.7–1.29]
 Q4 0.92 [0.62–1.35] 0.96 [0.65–1.41]
 Q5: highest extreme concentration of privilege 0.82 [0.57–1.18] 0.87 [0.61–1.25]
P for trend .292 .481
 Continuous 0.87 [0.77–0.98] 0.88 [0.78–1.00]
ICE for race/ethnicity
 Q1, highest extreme concentration of disprivilege
 Q2 0.74 [0.53–1.03] 0.75 [0.54–1.04]
 Q3 0.66 [0.42–1.02] 0.68 [0.44–1.05]
Q4 0.65 [0.44–0.97] 0.68 [0.45–1.01]
 Q5: highest extreme concentration of privilege 0.58 [0.38–0.89] 0.64 [0.42–0.98]
P for trend .050 .154
 Continuous 0.89 [0.79–1.00] 0.93 [0.82–1.04]
ICE combined
 Q1, highest extreme concentration of disprivilege
 Q2 0.76 [0.55–1.05]
 Q3 0.87 [0.63–1.21]
 Q4 0.81 [0.55–1.18]
 Q5: highest extreme concentration of privilege 0.70 [0.47–1.04]
P for trend .091
 Continuous 0.86 [0.76–0.98]

ICE = Index of Concentration at the Extremes.

Note. The evenness dimension of segregation was measured using the GINI coefficient for race/ethnicity. The exposure dimension of segregation was measured using the Isolation index. The ICE for income was measured as a continuous variable. All model two, three, and effects modification analysis controlled for sex, education (≤high school or less, >high school), employment status (employed, other), language preference (English, Spanish), years in the United States combined with nativity (U.S. born, years U.S. ≥ 10, years U.S. < 10), Hispanic/Latino heritage (Dominican, Cuban, Mexican, Puerto Rican, other/ >1 background group), marital status (married, other), health insurance (private, public, uninsured) and income (less than $10,000, $10,001–$20,000, $40,001–$75,000, more than $75,000). Neighborhood deprivation was included in model 2 of evenness and exposure (separate and together) and of ICE for race/ethnicity. Neighborhood racial/ethnic composition was included in model 2 and interaction models for evenness and ICE for income. Interaction models were tested separately fully adjusted for individual and neighborhood level variables. Exploratory interactions P-values used a Bonferroni adjusted P < .001 based on an alpha of 0.1 for 70 tests. Segregation dimensions and ICE Models N = 6710; interaction models: N = 6706. Exposure variables were analyzed as continuous in models of interactions.