Relation of Different Components of Climate with Human Pituitary-Thyroid Axis and FT3/FT4 Ratio: A Study on Euthyroid and SCH Subjects in Two Different Seasons
Table 5
Correlations of climate parameters of one day, one week, and one month before blood sample collection with the mean TSH, FT3, FT4, and FT3/FT4 ratio.
Duration from sample taking
Euthyroid
Climate parameters
FT3 (pg/ml)
FT4 (ng/dl)
FT3/FT4 ratio
TSH (mIU/l)
One day
Temperature
-0.195
0.029
-0.193
0.027
Humidity
0.204
-0.032
0.222
-0.046
Sunshine duration (hours)
-0.203
0.098
-0.264
0.077
Cloud cover (octa)
0.140
-0.136
0.254
-0.085
Atmospheric pressure
0.174
-0.02
0.151
-0.001
One week
Temperature
-0.220
0.058
-0.239
0.007
Humidity
0.227
-0.050
0.212
-0.033
Sunshine duration (hours)
-0.141
0.033
-0.142
0.07
Cloud cover (octa)
-0.041
0.001
-0.042
-0.021
Atmospheric pressure
0.067
-0.004
0.057
-0.014
One month
Temperature
-0.143
0.045
-0.172
0.003
Humidity
0.124
-0.02
0.136
-0.037
Sunshine duration (hours)
-0.127
0.05
-0.202
0.023
Cloud cover (octa)
0.108
-0.021
0.174
-0.005
Atmospheric pressure
0.168
-0.035
0.186
0.001
Correlations between parameters were found using Pearson’s correlation. value < 0.05 and value < 0.01.
