Table 2 Descriptive statistics for outdoor temperature and DTV during different time windows attributed to the children (n = 1,510)

Preconceptional

 1 year before conception

7.2

(0.5)

7.3

(0.4)

7.2

(0.5)

< 0.001

 3 months before conception

7.2

(0.8)

7.3

(0.7)

7.1

(0.8)

< 0.001

Prenatal

 1st trimester

7.2

(0.8)

7.3

(0.7)

7.0

(0.8)

< 0.001

 2nd trimester

7.1

(0.7)

7.3

(0.7)

6.9

(0.7)

< 0.001

 3rd trimester

7.1

(0.7)

7.3

(0.7)

6.9

(0.7)

< 0.001

 Entire pregnancy

7.1

(0.5)

7.3

(0.5)

7.0

(0.5)

< 0.001