Another study limitation is the fact the data
relied on self-reports of food consumption, exercise
and two-hour postprandial blood glucose levels.
Thus, one has to assume the subjects’ recordings
were accurate. Self-reports are vulnerable to the risk
of reporting biases, but tend to yield data of
considerable richness that is useful in gaining an
understanding of the phenomena under examination.
Finally, subjects were obtained from only one
geographic area (Bangkok) in Thailand which was a
major metropolitan area. Thus, the findings are
applicable only to pregnant women with GDM who
are from Bangkok and not to women from rural areas
of Thailand