Trimester
Body mass index (kg/m2)
Reference interval (mg/L)
Reference interval (mg/L)
R
DU
DL
Justification for partitioning
Justification for partitioning
Justification for partitioning
Upper limit (90% CI) Lower limit (90% CI)
R criteria
DU criteria
DL criteria
First
<25
14.73 (12.32-17.61) 0.33 (0.25-0.44)
1.09
0.73
1.07
Not met
Marginal
Met
≥25
26.01 (21.48-31.49) 1.04 (0.82-1.30)
Second
<25
13.41 (11.43-15.74) 0.63 (0.53-0.75)
0.98
0.91
0.81
Not met
Met
Met
≥25
27.00 (22.28-32.73) 1.20 (0.99-1.47)
Third
<25
13.88 (11.66-16.52) 0.67 (0.59-0.77)
1.01
0.65
0.63
Not met
Marginal
Marginal
≥25
24.03 (19.55-29.55) 1.02 (0.86-1.21)