Table 1.

Biomarkers classified by percentile in healthy pregnant participants according to body mass index before pregnancy and maternal age

	n	Adjusted HbA1c* (%)					Total cholesterol (mg/dL)					LDL cholesterol (mg/dL)					HDL cholesterol (mg/dL)					Triglyceride (mg/dL)
		2.5th	25th	50th	75th	97.5th	2.5th	25th	50th	75th	97.5th	2.5th	25th	50th	75th	97.5th	2.5th	25th	50th	75th	97.5th	2.5th	25th	50th	75th	97.5th
BMI before pregnancy
<18.5	12,148	4.6	5.0	5.1	5.4	5.7	137	171	191	216	271	58	83	99	118	166	54	69	78	87	107	54	87	112	144	238
18.5–24	56,156	4.6	5.0	5.2	5.4	5.7	140	175	196	220	273	61	88	104	123	168	52	68	76	86	106	56	92	118	154	263
25–29	5,817	4.7	5.1	5.2	5.5	5.8	148	182	204	226	278	68	97	114	132	178	48	63	72	81	100	65	109	143	185	326
≥30	1,634	4.8	5.1	5.4	5.6	6.0	148	185	205	228	280	70	102	119	136	180	46	60	69	77	97	72	118	151	197	352
Maternal age at registration (years)
<20	786	4.5	4.8	5.0	5.2	5.5	139	175	194	217	266	66	92	108	126	168	48	64	72	80	102	62	97	127	166	293
21–24	7,590	4.6	4.9	5.1	5.2	5.6	136	171	193	216	270	60	86	103	122	169	51	66	75	84	104	54	90	117	153	258
25–29	22,680	4.6	5.0	5.1	5.3	5.6	140	173	194	217	271	61	87	103	122	167	52	67	76	85	105	55	89	115	150	260
30–34	26,771	4.7	5.0	5.2	5.4	5.7	141	175	197	221	274	61	88	104	124	170	52	68	76	86	106	57	93	119	156	270
35–39	15,607	4.7	5.1	5.2	5.4	5.8	142	178	199	224	276	61	90	106	126	171	52	68	77	86	107	59	96	124	162	276
≥40	2,591	4.7	5.1	5.3	5.5	5.8	145	182	203	227	278	66	93	110	128	175	52	68	76	86	106	60	100	129	168	288

*Adjusted glycated hemoglobin (HbA1c) is defined as HbA1c (National Glycohemoglobin Standardization Program) or calculated HbA1c = 1.02 × HbA1c (Japan Diabetes Society) + 0.25. BMI, body mass index; HDL, high‐density lipoprotein; LDL, low‐density lipoprotein.