In SAC, the median UIC was also significantly higher in the
NEZ compared with that in the other 2 zones (Mann-Whitney;
P < 0.001 and P = 0.001, respectively). Not shown in Table 3 are
the results for the 142 women who were pregnant at the time of
sample collection. The median UIC in these women was 372 mg/L
(IQR: 196–784) for the combined strata, which indicates an
iodine intake above the requirement (11). Caution is needed in
interpreting these data due to the small sample size.