Purpose To analyze the body temperature of pregnant Brazilian women living in Brazil who are aware of
hiesho (sensitivity to cold) and to analyze the characteristics of their accessory symptoms during pregnancy and daily activities.
Method Subjects were 200 Brazilian women living in Brazil who were in the 20th or later week of pregnancy. Data was collected by measuring body temperature and through a paper questionnaire. The study took place between October 2007 and February 2008.
Results 1. The average difference between forehead core temperature and core temperature of the sole of the foot among pregnant women aware of
hiesho was 2.8°C and 2.0°C among pregnant women with no awareness of
hiesho, a significant difference between the two groups (p=0.018). 2. In a comparison of awareness of
hiesho and the scale for determining
hiesho, among pregnant women aware of
hiesho, 70.2% also met the scale for determining
hiesho. Among pregnant women with no awareness of
hiesho, 89.5% were determined not to have
hiesho, also based on the scale for determining
hiesho (Terasawa). 3. With regard to the relationship between
hiesho among pregnant women and accessory symptoms/daily activities, no cause-and-effect relationship was observed between awareness of
hiesho and
hiesho-related pregnancy-associated troubles. There was a positive correlation between irregular living habits and
hiesho-related pregnancy-associated troubles (β=0.41, p=0.049). Additionally, there was a positive correlation between irregular living habits and consumption of "unhealthy" foods through
hiesho-related pregnancy-associated troubles (β=0.38, p=0.021).
Conclusions 1. The difference between forehead core temperature and core temperature of the sole of the foot among pregnant women aware of
hiesho and pregnant women with no awareness of
hiesho was significantly large. Awareness of
hiesho reflects temperature differences, which is an objective indicator. 2. Among pregnant women with no awareness of
hiesho, the coincidence ratio with the scale for determining
hiesho (Terasawa) was approximately 80%. 3. Among pregnant Brazilian women, there was no cause-and-effect relationship between differences in core temperature and awareness of
hiesho on the one hand and
hiesho-related pregnancy-associated troubles, irregular living habits and consumption of "unhealthy" foods on the other; daily activities have no impact on
hiesho.
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