Table 1.

Serotonin values in dogs depending on their size (ng/mL).

Medium Size (10–20 kg) Group			Small Size (4–10 kg) Group			Difference
n	X ± SD	CV%	n	X ± SD	CV%	(ng/mL)
6	397.62 ± 167.72	42.18	4	343.73 ± 52.45	15.26	53.89 ns

ns—insignificant (p ≥ 0.39). CV—coefficient of variability.