Table 2: Difference between gestational ages calculated by curves adjustments and reported age averages for small, medium, and large size breeds and statistical analysis.

Breed AverageStandard deviationAverage standard error value*

Small size13845.7845.599.949.190.850.780.617
Medium size10845.1044.9011.1210.251.070.990.642
Large size9042.7442.819.2410.360.971.090.890

: number of female dogs, RGA: reported gestational age, GA: gestational age obtained considering the curves adjustment.
*Student’s -test.