Skip to main content

Table 1 Descriptive statistics of temperature, ozone concentrations, and population socioeconomic composition in each city

From: Ozone and childhood respiratory disease in three US cities: evaluation of effect measure modification by neighborhood socioeconomic status using a Bayesian hierarchical approach

City

# Counties

# ZCTAs

Temp. (F)

8-hr max Ozonea (ppb)

Socioeconomic Composition

# Monitors

Mean (SD)

Min

Max

IQR

% <12th Grade Mean (SD)

% Below Poverty Mean (SD

Atlanta

20

191

63.1

12

42.2 (17.3)

2.21

125

26.0

15.7 (8.10)

13.1 (7.84)

Dallas

12

253

68.8

19

42.0 (14.6)

2.23

118

19.7

17.5 (12.1)

14.0 (9.75)

St. Louis

16

256

57.9

18

40.0 (17.3)

0.15

115

25.4

15.9 (8.14)

12.5 (9.45)

  1. a Daily ZCTA-specific concentrations of ambient 8-h maximum ozone. Mean, SD, min., max., and IQR are summarized across days and ZCTAs
  2. Abbreviations: % <12th grade, percentage of the adult population (≥25 years old) with less than a 12th grade education; % below poverty, percentage of households living below the Federal Poverty Line; #, number; IQR interquartile range, Max maximum, Min minimum, ppb parts per billion, SD standard deviation; Temp average daily mean temperature in degrees Fahrenheit (F); ZCTA Zip Code Tabulation Area