Table 3

Maternal characteristics, indicators of hypotension and developmental delay (row per cents)

					BSID <70
Maternal characteristics		Lowest ¼ile MAP^*	Vasopressor^†	Labile MAP^‡	MDI	PDI	N
Years of education	<12	27	25	23	43	33	147
	12 (High school)	23	23	24	32	38	244
	>12 to <16	20	22	28	26	30	214
	College grad	19	27	24	16	28	172
	>16	24	34	21	15	26	137
Married	Yes	20	26	21	22	30	560
Married	No	25	26	27	33	35	385
Self supported	Yes	21	28	21	25	33	623
Self supported	No	25	21	30	31	29	302
Public insurance	Yes	26	24	29	36	36	352
Public insurance	No	20	26	21	21	29	574
Primigravida	Yes	24	29	22	20	32	371
Primigravida	No	21	24	26	32	32	549
Any conception assistance	Yes	18	33	17	18	34	201
Any conception assistance	No	23	24	26	29	31	718
Pre-pregnancy	<18.5	26	27	26	23	33	66
Pre-pregnancy	18.5–25	21	26	23	23	29	456
BMI	25.1–30	23	26	27	23	28	188
BMI	≥30	24	24	23	38	41	197
Vaginitis	Yes	21	21	30	37	38	126
Vaginitis	No	22	26	23	25	30	792
Aspirin	Yes	21	31	21	35	37	52
Aspirin	No	22	25	24	26	31	863
Pregnancy complication	Preterm labour	21	27	22	25	33	427
	pPROM	23	25	25	27	32	206
	Pre-eclampsia	20	20	26	32	33	123
	Abruption	24	25	30	18	23	104
	Cerv insufficiency	25	36	21	34	39	53
	Fetal indication	25	28	25	44	34	32

↵* Lowest ¼ile MAP: lowest mean arterial pressure recorded in the first 24 h, in the lowest quartile for gestational age.
↵† Vasopressor: treatment for hypotension in the first 24 h, using any vasopressor (dopamine, dobutamine, epinephrine).
↵‡ Labile MAP: labile blood pressure, defined as the upper quartile of the difference in the lowest and highest mean arterial pressure.
BMI, body mass index; BSID, Bayley Scales of Infant Development; Cerv insufficiency, cervical insufficiency; MDI, Mental Developmental Index; PDI, Psychomotor Developmental Index; pPROM, preterm premature rupture of membranes.