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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Environ Int. 2014 Jun 13;70:125–131. doi: 10.1016/j.envint.2014.05.011

Table 2.

Descriptive Statistics of Dialkylphosphate Metabolite Biomarker levels and Social Responsiveness Scale (SRS) Total Score (n = 136)

N Geometric Mean (GSD) Min Max IQR 5/95 percentile
ΣDAP nm/L All 134 76.9 (4.59) 0.50 4990 6.09 8.45/7112
Boys 68 72.5 (3.27) 0.50 1240 6.45 8.63/475
Girls 66 81.7 (6.16) 0.50 4990 7.78 0.49/956
Blacks 44 90.5 (6.14) 0.50 4990 6.91 7.48/1240
Whites & Hispanics 90 71.0 (3.92) 0.50 814 5.52 8.48/475

ΣDEP nm/L All 134 17.4 (4.63) 0.50 345 5.56 0.49/118
Boys 68 14.5 (4.78) 0.50 208 5.16 0.49/104
Girls 66 21.0 (4.43) 0.50 345 7.06 0.49/120
Blacks 44 15.7 (4.90) 0.50 345 5.90 0.49/135
Whites & Hispanics 90 18.3 (4.53) 0.50 223 6.14 0.49/113

ΣDMP nm/L All 135 41.7 (6.06) 0.50 4900 12.92 0.49/755
Boys 68 38.1 (4.83) 0.50 1240 9.49 3.96/444
Girls 67 45.7 (7.50) 0.50 4900 16.04 0.49/908
Blacks 45 49.8 (8.50) 0.50 4900 14.09 0.49/1240
Whites & Hispanics 90 38.2 (5.02) 0.50 788 9.46 3.96/415

Creatinine mg/dL All 136 69.3 (2.19) 12.7 342 3.31 16.7/246
Boys 68 69.0 (2.29) 12.7 342 3.26 16.2/241
Girls 68 69.6 (2.10) 13.7 271 3.02 20.9/246
Blacks 45 75.6 (2.38) 12.7 342 4.07 14.5/271
Whites & Hispanics 91 66.4 (2.09) 14.4 270 3.08 18.0/194

SRS Total Score1 All 136 52.9 (10.6) 38.0 84.0 15.0 39.0/74.0
Boys 68 52.4 (10.4) 38.0 84.0 16.5 38.0/72.0
Girls 68 53.4 (10.8) 38.0 82.0 14.5 41.0/75.0
Blacks 45 53.9 (11.9) 38.0 82.0 14.0 40.0/76.0
Whites & Hispanics 91 52.4 (9.90) 38.0 84.0 15.0 39.0/72.0
1

Arithmetic means and standard deviations, not geometric means, are reported for SRS total scores