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Table 11 RUCC-stratified description (mean, standard deviation, range) of domain-specific indices used in overall EQI construction for 3141 counties (2000–2005)

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

Metropolitan urbanized areas; RUCC 1 (n = 1089)

Mean

Standard deviation

Minimum

Maximum

Air domain index

0.756

0.662

−1.780

2.790

Water domain index

0.052

1.019

−1.641

1.478

Land domain index

0.089

0.909

−5.136

2.095

Sociodemographic domain index

0.594

0.955

−3.027

3.979

Built environment domain index

−0.213

0.878

−4.109

3.884

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

Mean

Standard deviation

Minimum

Maximum

Air domain index

0.484

0.474

−1.553

1.517

Water domain index

0.111

1.033

−1.570

1.306

Land domain index

0.089

0.909

−5.019

1.479

Sociodemographic domain index

0.023

0.858

−4.810

2.165

Built environment domain index

−0.563

0.485

−1.043

2.165

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

Mean

Standard deviation

Minimum

Maximum

Air domain index

−0.199

0.654

−2.731

1.204

Water domain index

0.066

0.955

−1.565

1.301

Land domain index

−0.069

1.007

−5.139

1.408

Sociodemographic domain index

−0.316

0.854

−4.620

3.127

Built environment domain index

−0.096

0.792

−6.086

3.127

Thinly populated areas; RUCC 4 (n = 670)

Mean

Standard deviation

Minimum

Maximum

Air domain index

−1.1141

0.879

−3.258

0.7300

Water domain index

−0.241

0.987

−1.555

1.732

Land domain index

−0.072

1.122

−5.210

1.732

Sociodemographic domain index

−0.477

0.860

−4.332

1.263

Built environment domain index

−0.770

1.225

−5.530

2.787