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. 2018 Oct 16;15(10):2263. doi: 10.3390/ijerph15102263

Table 1.

Characteristics of the exposure and outcomes variables.

Variables GM GSD Mean SD Median Min Max
Blood lead level in the 2nd trimester of pregnancy (μg/dL)
All subjects; N = 280 0.99 0.15 1.09 0.46 1.01 0.29 2.63
Males; N = 130 * 1.01 0.15 1.10 0.45 1.07 0.34 2.59
Females; N = 150 0.97 0.16 1.07 0.47 0.98 0.29 2.63
Cord blood lead level (μg/dL)
All subjects; N = 303 0.96 0.16 1.09 0.65 0.93 0.24 5.65
Males; N = 155 ** 0.99 0.16 1.11 0.59 0.94 0.29 4.04
Females; N = 148 0.94 0.16 1.08 0.71 0.92 0.24 5.65
Composite score for the one-year-old children; N = 367
Cognitive - - 106.9 10.3 105 80 145
Language - - 108.6 13.6 109 68 141
Motor - - 105.4 13.9 107 73 151
Composite score for the two-year-old children; N = 233
Cognitive - - 112.6 16.3 110 80 145
Language - - 102.1 12.8 100 74 144
Motor - - 112.0 14.4 110 73 154

Comparison between males and females * t-test p = 0.56; ** t-test p = 0.68. GM—geometric mean. GSD—geometric standard deviation. SD—standard deviation.