Table 1.

Summary of the results by different methods (n = 33)

Error (%)	Model I	Model II	Model III	Model IV	Model V	Model VI
≤ 50	17 (52)	27 (82)	15 (54)	31 (94)	30 (91)	10 (30)
≤ 30	9 (27)	20 (61)	11 (39)	21 (64)	20 (61)	7 (21)
> 50	16 (48)	6 (18)	12 (43)	2 (6)	3 (9)	23 (70)
> 100	11 (33)	3 (9)	5 (18)	0 (0)	0 (0)	17 (52)

Numbers in parentheses are % of the total number of observations (n = 33); method III, n = 27

Model I = sigmoidal maturation (age and body weight); model II = sigmoidal (weight vs. clearance); model III = body weight-dependent allometric exponent model; model IV = age-dependent allometric exponent model; model V = semi-physiological; model VI = allometric model