Primary outcomes
The differences between the GDM outcomes and OGTT plasma glucose
concentration values in both study arms are shown in Table 2. There were
no significant differences in the proportion of pregnant women diagnosed
with GDM in the unblinded group compared to the blinded groups [21.5%
vs 14.9%, p =0.37]. There were also no significant differences
in the FG,1hPG and 2hPG of participants in the unblinded group, compared
to the blinded group group [FG:
median 4.2 IQR 4.0-4.5) vs 4.3
(4.1-4.6) mmol/L, p =0.48); 1hPG: 7.7 (6.3-9.2) vs
7.5(6.3-8.7) mmol/L,p =0.38), and 2hPG: 6.3
(5.8-7.7) vs 6.2 (5.3-7.2) mmol/L,p =0.15)]. Adjustments were made for co-variates such as
maternal age, ethnicity, education, family history of diabetes and
pre-pregnancy BMI.