Table 11. Placenta volume models (volume in mL vs. fetal mass in kg for power law models, volume in mL vs. gestational age in weeks for all other models).

Model	${\widehat{\mathit{\theta }}}_0$	${\widehat{\mathit{\theta }}}_1$	${\widehat{\mathit{\theta }}}_2$	${\widehat{\mathit{\theta }}}_3$	$\mathcal{l}\left(\widehat{\mathit{\theta }}\right)$	AIC
Linear Growth	16.395	—	—	—	-78521.5	157045
Quadratic Growth	8.3802	0.20441	—	—	-78222.9	156450
Cubic Growth	-1.7646	0.91775	-0.011543	—	-78114.3	156235
Gompertz	5.4388	0.33757	0.065182	—	-78119.3	156245
Logistic	802.77	0.12491	27.831	—	-78146.5	156299
Power Law	398.05	0.40647	—	—	-78131.6	156267
Luecke Power Law	389.55	0.4129	0.0096187	—	-78125.4	156257

For each model considered, the maximum likelihood parameter estimates ($\widehat{\theta }$), log-likelihood ($\mathcal{l}\left(\widehat{\theta }\right)$), and AIC are provided. The row describing the selected model is shown in boldface.