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. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: J Epidemiol Community Health. 2019 Mar 30;73(7):590–597. doi: 10.1136/jech-2018-212004

Table 2.

Regression Coefficients (95% Confidence Intervals) from Linear Mixed Models of Depressive Symptoms in the NEXT Generation Health Study, Waves 1–6 (n=2,752).

Characteristic Age-adjustedc Model 1d Model 2e Model 3f Model 4g
Neighborhood
Gini coefficient of income inequalitya,b
 Lowest quartile Referent Referent Referent Referent Referent
 Second quartile 0.17 (−0.35, 0.69) 0.10 (−0.43, 0.64) 0.10 (−0.45, 0.64) 0.10 (−0.45, 0.66) 0.15 (−0.43, 0.73)
 Third quartile −0.23 (−0.79, 0.33) −0.33 (−0.90, 0.23) −0.41 (−1.00, 0.17) −0.38 (−0.98, 0.21) −0.34 (−0.96, 0.28)
 Highest quartile −0.34 (−0.93, 0.24) −0.43 (−1.02, 0.16) −0.56 (−1.18, 0.05) −0.46 (−1.14, 0.22) −0.43 (−1.14, 0.29)
 F, df=3 (P) 1.3 (0.26) 1.7 (0.18) 2.4 (0.07) 1.6 (0.18) 1.6 (0.18)
Median household incomea,b
 Lowest quartile −0.31 (−0.92, 0.30) −0.46 (−1.09, 0.17) −0.54 (−1.20, 0.11) −0.30 (−1.01, 0.42) −0.27 (−1.19, 0.64)
 Second quartile 0.10 (−0.51, 0.72) 0.03 (−0.60, 0.65) −0.06 (−0.68, 0.57) 0.03 (−0.63, 0.69) 0.06 (−0.68, 0.80)
 Third quartile −0.26 (−0.81, 0.30) −0.28 (−0.86, 0.31) −0.36 (−0.92, 0.20) −0.29 (−0.87, 0.28) −0.27 (−0.88, 0.34)
 Highest quartile Referent Referent Referent Referent Referent
 F, df=3 (P) 1.0 (0.39) 1.3 (0.27) 1.5 (0.22) 0.8 (0.50) 0.7 (0.53)
Social Fragmentation Indexa,b
 Lowest quartile Referent Referent Referent
 Second quartile 0.22 (−0.28, 0.72) 0.12 (−0.40, 0.64) 0.06 (−0.54, 0.66)
 Third quartile −0.32 (−0.95, 0.31) −0.49 (−1.16, 0.18) −0.56 (−1.39, 0.27)
 Highest quartile 0.17 (−0.52, 0.87) 0.03 (−0.75, 0.82) 0.06 (−0.95, 1.07)
F, df=3 (P) 1.3 (0.27) 1.6 (0.20) 1.7 (0.17)
Percentage of race/ethnic minority residentsa,b
 Lowest quartile Referent Referent Referent Referent
 Second quartile 0.54 (0.02, 1.06) 0.45 (−0.07, 0.97) 0.61 (0.07, 1.16) 0.66 (0.09, 1.23)
 Third quartile 0.66 (−0.06, 1.37) 0.48 (−0.31, 1.26) 0.71 (−0.08, 1.50) 0.88 (0.01, 1.74)
 Highest quartile 0.19 (−0.63, 1.01) −0.07 (−1.00, 0.86) 0.14 (−0.79, 1.07) 0.32 (−0.66, 1.31)
 F, df=3 (P) 2.0 (0.12) 1.7 (0.16) 2.6 (0.05) 2.5 (0.06)
Respondent/Family
Age, per yearb −0.08 (−0.17, 0.00) −0.08 (−0.16, 0.01)
Male Sex −4.95 (−5.62, −4.29) −4.94 (−5.61, −4.27) −4.95 (−5.62, −4.28)
Race/Ethnicity
 Non-Hispanic White Referent Referent Referent
 Non-Hispanic Black/African American 0.83 (−0.13, 1.80) 0.38 (−0.68, 1.43) 0.41 (−0.73, 1.55)
 Hispanic or Latino 0.18 (−0.72, 1.09) 0.17 (−0.84, 1.18) 0.19 (−0.87, 1.25)
 Other 2.58 (0.97, 4.19) 2.22 (0.61, 3.84) 2.22 (0.58, 3.86)
 F, df=3 (P) 3.9 (0.01) 2.6 (0.05) 2.5 (0.06)
Family Affluence
 Low 0.51 (−0.44, 1.45) 0.60 (−0.33, 1.53) 0.59 (−0.35, 1.54)
 Medium −0.09 (−0.95, 0.77) 0.13 (−0.72, 0.98) 0.13 (−0.71, 0.98)
 High Referent Referent Referent
 F, df=2 (P) 1.1 (0.35) 1.0 (0.38) 0.9 (0.40)
a

Age and neighborhood characteristics are modeled as time varying.

b

Neighborhood measures at each wave were standardized to a mean of 0 and standard deviation of 1 in all U.S. census tracts.

c

Each variable is modeled separately, adjusted only for respondent age.

d

Each neighborhood characteristic is analyzed in a separate regression adjusted for respondent- and family-level covariates.

e

Income inequality and median household income are modeled separately, each adjusted for respondent-/family- and neighborhood-level covariates.

f

Income inequality and median household income are modeled simultaneously, adjusted for respondent-/family- and neighborhood-level covariates.

g

All neighborhood, respondent- and family-level characteristics are entered simultaneously into a single model.