Table 3.

Prevalence of gestational age groups in the model-testing dataset, n = 76,671

Gestational age	Actual gestational age			Metabolic model			Weight-only model
n	%	Cum%	n	%	Cum%	n	%	Cum%
≤32	1177	1.54	0.00	674	0.88	0.00	891	1.16	0.00
33−34	1271	1.66	3.19	876	1.14	2.02	604	0.79	1.95
35−36	4364	5.69	8.88	2291	2.99	5.01	2089	2.72	4.67
37−38	18,927	24.69	33.57	20,994	27.38	32.39	15,306	19.96	24.64
39−40	44,151	57.59	89.62	50,600	66.00	97.51	57,613	75.14	98.62
>40	6781	8.84	100.00	1235	1.61	99.99	0	0.00	99.78
Missing	0.00	0.00	100.00	1	0.00	100.00	168	0.22	100.00

Ryckman. Metabolic predictors of gestational age. Am J Obstet Gynecol 2016.