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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 1.

Sociodemographic Characteristics of NEXT Respondents (Total N = 2752) and Their Residential Neighborhoods by Survey Wave, % or Mean (Standard Error)a

Characteristic Wave 1 (n= 2486) Wave 2 (n=2388) Wave 3 (n=2354) Wave 4 (n=2088) Wave 5 (n=2118) Wave 6 (n=2042)
Depressive symptom T-score 50.7 (0.4) 51.2 (0.5) 50.5 (0.6) 50.4 (0.4) 51.2 (0.4) 50.9 (0.4)
Neighborhood Characteristics
Social Fragmentation Indexb
 Lowest quartile 33.2 (4.9) 32.2 (5.3) 32.6 (5.6) 35.9 (3.7) 36.3 (4.2) 33.9 (4.6)
 Second quartile 43.8 (6.3) 43.4 (6.2) 40.4 (6.1) 29.2 (3.2) 32.2 (3.6) 32.3 (3.8)
 Third quartile 14.3 (4.2) 15.6 (4.5) 17.2 (4.5) 18.4 (3.0) 18.4 (2.7) 19.9 (3.0)
 Highest quartile 8.8 (3.7) 8.9 (3.6) 9.9 (3.7) 16.5 (2.4) 13.0 (2.8) 13.8 (3.0)
Gini coefficient of income inequalityb
 Lowest quartile 29.5 (5.7) 29.6 (5.8) 27.8 (5.3) 28.3 (3.8) 29.4 (3.4) 28.8 (3.5)
 Second quartile 25.0 (2.5) 24.2 (2.4) 25.4 (2.9) 24.7 (2.7) 26.8 (2.9) 25.6 (3.0)
 Third quartile 25.6 (4.3) 24.8 (4.1) 23.9 (3.5) 24.9 (3.8) 26.1 (3.0) 26.5 (3.1)
 Highest quartile 19.9 (5.3) 21.4 (5.6) 23.0 (5.4) 22.2 (2.0) 17.7 (2.9) 19.1 (3.1)
Neighborhood median household incomeb
 Lowest quartile 20.1 (5.6) 21.3 (5.8) 20.7 (5.2) 23.3 (2.8) 20.7 (2.4) 22.4 (3.0)
 Second quartile 18.0 (3.6) 17.6 (3.4) 20.2 (3.2) 20.9 (2.5) 21.0 (2.6) 22.3 (3.0)
 Third quartile 30.1 (4.9) 29.5 (4.8) 28.6 (4.6) 30.2 (3.1) 29.1 (3.2) 26.4 (3.3)
 Highest quartile 31.8 (5.5) 31.6 (5.7) 30.5 (5.5) 25.6 (3.6) 29.2 (4.3) 28.9 (4.3)
Percentage of minority residentsb
 Lowest quartile 33.0 (5.5) 32.8 (5.8) 31.6 (5.7) 36.1 (4.6) 34.0 (4.7) 32.1 (5.0)
 Second quartile 44.9 (6.9) 43.4 (6.8) 43.7 (6.8) 38.8 (4.9) 42.4 (5.7) 40.3 (6.0)
 Third quartile 13.5 (3.6) 12.7 (3.5) 13.6 (3.6) 14.3 (3.3) 14.2 (3.2) 15.3 (3.3)
 Highest quartile 8.6 (4.5) 11.1 (5.2) 11.1 (5.2) 10.9 (3.2) 9.4 (3.2) 12.3 (4.2)
Respondent/Family-Level Characteristics
Sex (% male) 45.6 (1.7) 44.8 (1.8) 44.8 (1.6) 41.2 (2.0) 40.1 (1.9) 38.4 (1.9)
Age 16.3 (0.03) 17.2 (0.03) 18.2 (0.03) 19.2 (0.02) 20.3 (0.02) 21.3 (0.02)
Race or ethnicity
 Non-Hispanic White 57.8 (5.4) 58.8 (6.0) 58.8 (6.0) 62.1 (5.8) 61.1 (5.3) 57.1 (6.3)
 Non-Hispanic Black/African-American 17.6 (3.6) 17.3 (4.1) 17.1 (4.1) 13.5 (3.3) 13.6 (3.4) 19.7 (4.9)
 Hispanic 19.7 (3.9) 19.5 (4.0) 19.9 (3.9) 19.5 (4.3) 19.9 (3.8) 18.7 (3.8)
 Other 5.0 (1.1) 4.3 (1.0) 4.1 (0.8) 4.9 (1.0) 5.4 (1.0) 4.5 (1.1)
Family affluence
 Low 23.9 (2.7) 23.0 (2.9) 23.0 (3.1) 22.2 (2.7) 22.5 (2.6) 22.4 (3.1)
 Medium 48.8 (1.5) 49.8 (1.2) 49.0 (1.5) 48.3 (1.8) 49.2 (1.5) 49.5 (1.6)
 High 27.3 (2.5) 27.2 (2.5) 28.0 (2.8) 29.4 (2.7) 28.4 (2.6) 28.1 (2.7)
a

Wave-specific percentages for some variables do not add to 100% because of rounding.

b

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