出生前母体重（类）金属复合暴露与子代认知和气质发育的相关性研究
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徐祖婧, 江怡宁, 徐健
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Relationship between prenatal mixed heavy metal/metalloid exposure and offspring cognitive and temperament development
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XU Zujing, JIANG Yining, XU Jian
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表1 研究对象的人口学特征及临床特征
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Tab 1 Demographic and clinical characteristics of participants
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| Characteristic | Value |
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| Maternal age/year | 29.39±3.41 | | Maternal education level/n(%) | | | Senior high school or below | 16 (11.50) | | University or college | 105 (75.54) | | Postgraduate | 18 (12.95) | | Marital status/n(%) | | | Married | 134 (96.40) | | Single | 5 (3.60) | | Occupation/n(%) | | | Professional and technical personnel | 45 (32.37) | | Administrative or management personnel | 30 (21.58) | | Commercial personnel | 25 (17.99) | | Others | 39 (28.06) | | Family monthly income/n(%) | | | <2 000 yuan | 6 (4.32) | | 2 000‒5 000 yuan | 37 (26.62) | | 5 000‒10 000 yuan | 54 (38.85) | | >10 000 yuan | 42 (30.21) | | Birth weight/kg | 3.47±0.42 | | Gestational age/week | 39.27±1.36 | | Child gender/n(%) | | | Male | 56 (40.29) | | Female | 83 (59.71) | | Child age/month | 32.91±2.69 | | DQ of GDS/score | | | Gross motor | 108.36±11.05 | | Fine motor | 100.47±13.32 | | Language | 111.48±12.40 | | Adaptive | 114.23±8.81 | | Personal-social | 105.38±11.01 | | Score of TTS/score | | | Activity | 3.23±0.57 | | Rhythm | 2.63±0.57 | | Withdrawal | 2.94±0.77 | | Adaptability | 2.90±0.58 | | Reaction | 3.85±0.60 | | Mood | 2.66±0.63 | | Persistence | 2.86±0.66 | | Attention | 3.72±0.53 | | Threshold | 3.89±0.75 | | Heavy metal/metalloid level/(μg·dL-1) | | | Mn | 3.32 (2.24, 4.63) | | Pb | 3.60 (2.55, 4.35) | | As | 2.03 (1.01, 3.35) | | Cr | 1.78 (0.77, 2.52) |
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