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. 2021 Aug 20;3:100052. doi: 10.1016/j.lana.2021.100052

Table 1.

Baseline census block characteristics by HOLC classification.

HOLC Classification
Green(n=1805) Blue(n=455) Yellow(n=3236) Red(n=2034) P-value
Firearm Incident Rate (per 1,000 people), mean (SD) 0•5 (0•87) 0•8 (0•77) 5•4 (2•69) 5•3 (2•56) <0•001
% Black, mean (SD) 16•4 (19•6) 11•2 (19•5) 31•0 (28•4) 19•4 (21•4) <0•001
% Male, mean (SD) 54•7 (11•1) 46•8 (3•3) 47•3 (4•1) 49•4 (5•3) <0•001
Age, mean (SD) 39•2 (6•2) 41•8 (5•3) 38•9 (5•1) 37•7 (3•9) <0•001
% below poverty level, mean (SD) 10•7 (10•4) 6•1 (6•2) 13•8 (10•9) 17•0 (11•6) <0•001
% with SNAP benefits, mean (SD) 13•2 (10•7) 7•4 (7•5) 20•2 (14•0) 23•0 (14•9) <0•001
% with 30% or more of income going toward housing, mean (SD) 41•5 (12•8) 35•0 (8•1) 43•7 (10•8) 43•1 (11•0) <0•001
% Uninsured, mean (SD) 3•0 (2•9) 2•0 (1•7) 3•7 (2•2) 3•6 (2•5) <0•001
% with public insurance, mean (SD) 32•6 (19•7) 27•0 (10•9) 39•2 (17•8) 38•4 (17•9) <0•001
% of labor force unemployed, mean (SD) 10•1 (9•7) 5•6 (2•7) 7•5 (4•6) 7•5 (5•5) <0•001
% with less than high school degree, mean (SD) 9•5 (9•7) 5•6 (4•6) 12•9 (9•1) 17•0 (11•9) <0•001
Household income (in 1000s of dollars), mean (SD) 108 (34) 118 (21) 88 (26) 91 (35) <0•001
Gini index, mean (SD) 0•49 (0•09) 0•46 (0•07) 0•46 (0•06) 0•50 (0•08) <0•001
Housing price (1000s of dollars), mean (SD) 1209 (541) 1017 (574) 932 (581) 1047 (625) <0•001
% of rented housing, mean (SD) 62•4 (22•0) 43•0 (18•9) 58•9 (18•5) 70•1 (15•2) <0•001
Rent, mean (SD) 2132 (720) 2023 (766) 1432 (666) 1560 (848) <0•001