Table 2 Comparison of OPFR levels between GDM patients and their controls.

From: Environmental exposures to organophosphorus flame retardants in early pregnancy and risks of gestational diabetes mellitus: a nested case–control study

OPFRs

Detection rate (%)

Control (n = 90) (ng/mg creatinine)

GDM (n = 60) (ng/mg creatinine)

P-value

P50

P25–P75

P50

P25–P75

TBEP

99.33

14.770

5.194–45.856

31.074

12.918–87.763

0.001

TBP

98.67

1.019

0.717–1.894

2.786

1.587–6.810

< 0.001

TCEP

99.33

1.465

0.911–3.008

3.122

1.560–6.649

< 0.001

TDCPP

98.00

14.066

7.247–35.718

51.389

22.098–143.938

< 0.001

TMCP

98.67

3.997

1.799–8.005

4.228

2.783–12.575

< 0.001

TOCP

98.00

1.872

1.056–3.607

4.790

1.962–11.057

< 0.001

TPHP

91.33

1.292

0.828–3.054

2.659

1.199–6.110

< 0.001

Total

97.62

2.900

1.091–8.527

5.907

2.208–22.883

< 0.001

  1. OPFR levels were presented as medians (interquartile ranges). P-values were derived using the Student’s t-test (log10-transformed data). Bold numbers represented statistical significance (P < 0.05). GDM gestational diabetes mellitus, OPFR Organic phosphate flame retardant, TBP tributyl phosphate, TBEP tris (2-butoxyethyl) phosphate, TCEP tris (2-chloroethyl) phosphate, TDCPP tris (1,3-dichloro-2-propyl) phosphate, TMCP tri-m-cresyl phosphate, TOCP tri-ortho-cresyl phosphate, TPHP triphenyl phosphate.
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