Neighborhood deprivation and biomarkers of health in Britain: the mediating role of the physical environment

BMC Public Health

Table 1 Characteristics of the sample

	N	Mean	SE	Range
Individual-level variables
Age (years)^a	20,573	50.71	0.13	16,102
Household equivalised income (monthly, £)^a	20,559	1726.22	17.34	− 3748.61, 130,362.60
Forced expiratory volume in 1 s (FEV₁%)	16,347	92.46	0.13	22.07, 191.51
Systolic blood pressure (SBP, mmHg)	16,846	128.13	0.14	75.00, 226.00
Body Mass Index (BMI, kg/m²)	19,417	28.04	0.04	15.24, 59.64
C-reactive protein (CRP, mg/L)	11,825	2.08	0.02	0.20, 10.00
Neighborhood-level variables
Carstairs index^b	4929	0.16	3.26	−5.07, 15.27
Sulphur dioxide (SO₂, μg/m³)^c	4929	4.26	2.16	0.52, 19.14
Particulate matter (PM₁₀, μg/m³)^c	4929	15.63	2.05	9.30, 22.54
Nitrogen dioxide (NO₂, mg/m³)^c	4929	24.32	8.62	1.52, 60.36
Carbon monoxide (CO, μg/m³)^c	4929	0.22	0.06	0.13, 0.56
%Green space	4929	57.28	27.51	0.00, 95.19
Proximity to industrial facilities^d	4929	0.06	0.19	0.00, 1.00

^aAge and household income values are based on the largest possible sample size
^bBased on the following neighborhood characteristics: male unemployment, overcrowding, car ownership, and social class
^cPopulation weighted, annual averages
^dProportion of neighborhood residents living within 4 Km of a waste site and/or 1.6 Km from a metal processing/production site

ISSN: 1471-2458