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Table 13 RUCC-stratified domain-specific loadings and 95% confidence intervals (95% CI) on overall EQI for 3141 EQI counties (2000–2005)

From: Construction of an environmental quality index for public health research

Metropolitan urbanized areas; RUCC 1 (n = 1089

Coefficient

95% CI

Air domain index

0.5063

0.4379, 0.5747

Water domain index

0.2757

0.1828, 0.3686

Land domain index

0.4379

0.36552, 0.5107

Sociodemographic domain index

0.4538

0.3945, 0.5131

Built environment domain index

0.5196

0.4565, 0.5827

Non-metropolitan urbanized areas; RUCC 2 (n = 323)

Coefficient

95% CI

Air domain index

0.3343

0.0.80, 0.5705

Water domain index

0.2958

0.0738, 0.5178

Land domain index

0.5506

0.4168, 0.6845

Sociodemographic domain index

0.5963

0.4913, 0.7012

Built environment domain index

0.3769

0.1719, 0.5819

Less-urbanized areas; RUCC 3 (n = 1059)

Coefficient

95% CI

Air domain index

0.1609

0.0477, 0.2740

Water domain index

0.2981

0.1976, 0.3987

Land domain index

0.5503

0.4905, 0.6058

Sociodemographic domain index

0.5675

0.5112, 0.6238

Built environment domain index

0.5102

0.4479, 0.5726

Thinly populated areas; RUCC 4 (n = 670)

Coefficient

95% CI

Air domain index

0.0285

−0.1507, 0.2076

Water domain index

0.1347

−0.0444, 0.3138

Land domain index

0.5785

0.4920, 0.6649

Sociodemographic domain index

0.6263

0.5555, 0.6972

Built environment domain index

0.5041

0.3980, 0.6103