Table 1.
Open in new tab

Maternal and Neonatal Characteristics and TH Concentrations in Cord Serum

SexSecondhand Smoke Exposure
MaleFemaleP ValueNoYesP Value
n329287244313
Maternal characteristics
    Age, y27.06 ± 4.5227.12 ± 4.21.85227.45 ± 4.2626.81 ± 4.28.083
    Education.824<.001
        Junior middle school or lower274 (86.70%)235 (86.10%)188 (79.70%)282 (92.50%)
        Senior middle school or university42 (13.30%)38 (13.90%)48 (20.30%)23 (7.50%)
    Residence.834.120
        Haojiang160 (48.60%)142 (49.50%)130 (53.30%)146 (46.60%)
        Guiyu169 (51.40%)145 (50.50%)114 (46.70%)167 (53.40%)
    Smoking.061.424
        No325 (98.80%)287 (100.00%)242 (99.20%)312 (99.70%)
        Yes4 (1.20%)0 (0.00%)2 (0.80%)1 (0.30%)
    Drinking.391.005
        No325 (98.80%)281 (97.90%)244 (100.00%)303 (96.80%)
        Yes4 (1.20%)6 (2.10%)0 (0.00%)10 (3.20%)
    Secondhand smoke exposure.287
        No134 (46.00%)108 (41.50%)
        Yes157 (54.00%)152 (58.50%)
Newborn characteristics
    Birth length, cm51.33 ± 2.0350.86 ± 1.95.00450.92 ± 1.9751.23 ± 2.02.079
    Birth weight, g3290.55 ± 408.793215.85 ± 427.58.0283238.73 ± 409.413262.74 ± 420.31.50
    Birth BMI, kg/m212.49 ± 1.3912.42 ± 1.42.51312.48 ± 1.3312.44 ± 1.40.738
    Head circumference, cm34.90 ± 1.7034.12 ± 2.16<.00134.73 ± 1.7834.55 ± 1.66.219
    AGD, mm16.61 ± 6.459.48 ± 3.47<.001
    Gestational weeks.609.440
        <372 (0.70%)4 (1.50%)3 (1.30%)3 (1.00%)
        37–41289 (96.30%)249 (95.40%)220 (96.50%)272 (94.80%)
        ≥429 (3.00%)8 (3.10%)5 (2.20%)12 (4.20%)
    Sex.283
        Male133 (55.40%)157 (50.80%)
        Female107 (44.60%)152 (49.20%)
    TH concentrations in cord serum
        FT3, pmol/L1.64 ± 0.731.61 ± 0.69.531.65 ± 0.671.61 ± 0.74.446
        FT4, pmol/L15.34 ± 4.8415.90 ± 5.04.15715.49 ± 4.9415.87 ± 4.94.365
        TSH, mIU/L6.24 ± 4.245.45 ± 3.85.0176.43 ± 5.105.30 ± 2.81<.001
        Log10TSH0.72 ± 0.240.67 ± 0.23.0050.72 ± 0.260.67 ± 0.21.022
SexSecondhand Smoke Exposure
MaleFemaleP ValueNoYesP Value
n329287244313
Maternal characteristics
    Age, y27.06 ± 4.5227.12 ± 4.21.85227.45 ± 4.2626.81 ± 4.28.083
    Education.824<.001
        Junior middle school or lower274 (86.70%)235 (86.10%)188 (79.70%)282 (92.50%)
        Senior middle school or university42 (13.30%)38 (13.90%)48 (20.30%)23 (7.50%)
    Residence.834.120
        Haojiang160 (48.60%)142 (49.50%)130 (53.30%)146 (46.60%)
        Guiyu169 (51.40%)145 (50.50%)114 (46.70%)167 (53.40%)
    Smoking.061.424
        No325 (98.80%)287 (100.00%)242 (99.20%)312 (99.70%)
        Yes4 (1.20%)0 (0.00%)2 (0.80%)1 (0.30%)
    Drinking.391.005
        No325 (98.80%)281 (97.90%)244 (100.00%)303 (96.80%)
        Yes4 (1.20%)6 (2.10%)0 (0.00%)10 (3.20%)
    Secondhand smoke exposure.287
        No134 (46.00%)108 (41.50%)
        Yes157 (54.00%)152 (58.50%)
Newborn characteristics
    Birth length, cm51.33 ± 2.0350.86 ± 1.95.00450.92 ± 1.9751.23 ± 2.02.079
    Birth weight, g3290.55 ± 408.793215.85 ± 427.58.0283238.73 ± 409.413262.74 ± 420.31.50
    Birth BMI, kg/m212.49 ± 1.3912.42 ± 1.42.51312.48 ± 1.3312.44 ± 1.40.738
    Head circumference, cm34.90 ± 1.7034.12 ± 2.16<.00134.73 ± 1.7834.55 ± 1.66.219
    AGD, mm16.61 ± 6.459.48 ± 3.47<.001
    Gestational weeks.609.440
        <372 (0.70%)4 (1.50%)3 (1.30%)3 (1.00%)
        37–41289 (96.30%)249 (95.40%)220 (96.50%)272 (94.80%)
        ≥429 (3.00%)8 (3.10%)5 (2.20%)12 (4.20%)
    Sex.283
        Male133 (55.40%)157 (50.80%)
        Female107 (44.60%)152 (49.20%)
    TH concentrations in cord serum
        FT3, pmol/L1.64 ± 0.731.61 ± 0.69.531.65 ± 0.671.61 ± 0.74.446
        FT4, pmol/L15.34 ± 4.8415.90 ± 5.04.15715.49 ± 4.9415.87 ± 4.94.365
        TSH, mIU/L6.24 ± 4.245.45 ± 3.85.0176.43 ± 5.105.30 ± 2.81<.001
        Log10TSH0.72 ± 0.240.67 ± 0.23.0050.72 ± 0.260.67 ± 0.21.022
Table 1.
Open in new tab

Maternal and Neonatal Characteristics and TH Concentrations in Cord Serum

SexSecondhand Smoke Exposure
MaleFemaleP ValueNoYesP Value
n329287244313
Maternal characteristics
    Age, y27.06 ± 4.5227.12 ± 4.21.85227.45 ± 4.2626.81 ± 4.28.083
    Education.824<.001
        Junior middle school or lower274 (86.70%)235 (86.10%)188 (79.70%)282 (92.50%)
        Senior middle school or university42 (13.30%)38 (13.90%)48 (20.30%)23 (7.50%)
    Residence.834.120
        Haojiang160 (48.60%)142 (49.50%)130 (53.30%)146 (46.60%)
        Guiyu169 (51.40%)145 (50.50%)114 (46.70%)167 (53.40%)
    Smoking.061.424
        No325 (98.80%)287 (100.00%)242 (99.20%)312 (99.70%)
        Yes4 (1.20%)0 (0.00%)2 (0.80%)1 (0.30%)
    Drinking.391.005
        No325 (98.80%)281 (97.90%)244 (100.00%)303 (96.80%)
        Yes4 (1.20%)6 (2.10%)0 (0.00%)10 (3.20%)
    Secondhand smoke exposure.287
        No134 (46.00%)108 (41.50%)
        Yes157 (54.00%)152 (58.50%)
Newborn characteristics
    Birth length, cm51.33 ± 2.0350.86 ± 1.95.00450.92 ± 1.9751.23 ± 2.02.079
    Birth weight, g3290.55 ± 408.793215.85 ± 427.58.0283238.73 ± 409.413262.74 ± 420.31.50
    Birth BMI, kg/m212.49 ± 1.3912.42 ± 1.42.51312.48 ± 1.3312.44 ± 1.40.738
    Head circumference, cm34.90 ± 1.7034.12 ± 2.16<.00134.73 ± 1.7834.55 ± 1.66.219
    AGD, mm16.61 ± 6.459.48 ± 3.47<.001
    Gestational weeks.609.440
        <372 (0.70%)4 (1.50%)3 (1.30%)3 (1.00%)
        37–41289 (96.30%)249 (95.40%)220 (96.50%)272 (94.80%)
        ≥429 (3.00%)8 (3.10%)5 (2.20%)12 (4.20%)
    Sex.283
        Male133 (55.40%)157 (50.80%)
        Female107 (44.60%)152 (49.20%)
    TH concentrations in cord serum
        FT3, pmol/L1.64 ± 0.731.61 ± 0.69.531.65 ± 0.671.61 ± 0.74.446
        FT4, pmol/L15.34 ± 4.8415.90 ± 5.04.15715.49 ± 4.9415.87 ± 4.94.365
        TSH, mIU/L6.24 ± 4.245.45 ± 3.85.0176.43 ± 5.105.30 ± 2.81<.001
        Log10TSH0.72 ± 0.240.67 ± 0.23.0050.72 ± 0.260.67 ± 0.21.022
SexSecondhand Smoke Exposure
MaleFemaleP ValueNoYesP Value
n329287244313
Maternal characteristics
    Age, y27.06 ± 4.5227.12 ± 4.21.85227.45 ± 4.2626.81 ± 4.28.083
    Education.824<.001
        Junior middle school or lower274 (86.70%)235 (86.10%)188 (79.70%)282 (92.50%)
        Senior middle school or university42 (13.30%)38 (13.90%)48 (20.30%)23 (7.50%)
    Residence.834.120
        Haojiang160 (48.60%)142 (49.50%)130 (53.30%)146 (46.60%)
        Guiyu169 (51.40%)145 (50.50%)114 (46.70%)167 (53.40%)
    Smoking.061.424
        No325 (98.80%)287 (100.00%)242 (99.20%)312 (99.70%)
        Yes4 (1.20%)0 (0.00%)2 (0.80%)1 (0.30%)
    Drinking.391.005
        No325 (98.80%)281 (97.90%)244 (100.00%)303 (96.80%)
        Yes4 (1.20%)6 (2.10%)0 (0.00%)10 (3.20%)
    Secondhand smoke exposure.287
        No134 (46.00%)108 (41.50%)
        Yes157 (54.00%)152 (58.50%)
Newborn characteristics
    Birth length, cm51.33 ± 2.0350.86 ± 1.95.00450.92 ± 1.9751.23 ± 2.02.079
    Birth weight, g3290.55 ± 408.793215.85 ± 427.58.0283238.73 ± 409.413262.74 ± 420.31.50
    Birth BMI, kg/m212.49 ± 1.3912.42 ± 1.42.51312.48 ± 1.3312.44 ± 1.40.738
    Head circumference, cm34.90 ± 1.7034.12 ± 2.16<.00134.73 ± 1.7834.55 ± 1.66.219
    AGD, mm16.61 ± 6.459.48 ± 3.47<.001
    Gestational weeks.609.440
        <372 (0.70%)4 (1.50%)3 (1.30%)3 (1.00%)
        37–41289 (96.30%)249 (95.40%)220 (96.50%)272 (94.80%)
        ≥429 (3.00%)8 (3.10%)5 (2.20%)12 (4.20%)
    Sex.283
        Male133 (55.40%)157 (50.80%)
        Female107 (44.60%)152 (49.20%)
    TH concentrations in cord serum
        FT3, pmol/L1.64 ± 0.731.61 ± 0.69.531.65 ± 0.671.61 ± 0.74.446
        FT4, pmol/L15.34 ± 4.8415.90 ± 5.04.15715.49 ± 4.9415.87 ± 4.94.365
        TSH, mIU/L6.24 ± 4.245.45 ± 3.85.0176.43 ± 5.105.30 ± 2.81<.001
        Log10TSH0.72 ± 0.240.67 ± 0.23.0050.72 ± 0.260.67 ± 0.21.022
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