TABLE 3. Center Variation in Treatments for Hypotension.

Center	Proportion Treated, %	Lowest MAP on First Day,a mm Hg	OR (95% CI)	Adjusted OR (95% CI)
Any treatmentb
A	29	28	1	1c
B	46	27	2 (1–4)	3 (1–6)
C	61	20	4 (2–7)	5 (2–10)
D	69	24	5 (3–9)	9 (5–18)
E	80	25	9 (5–20)	33 (14–80)
F	85	24	13 (6–27)	25 (11–56)
G	91	23	24 (11–50)	44 (19–102)
H	92	23	26 (13–52)	54 (25–118)
I	93	23	32 (7–145)	84 (17–404)
J	93	25	34 (15–78)	80 (32–203)
K	94	22	37 (16–82)	58 (24–140)
L	94	23	39 (14–106)	92 (31–275)
M	96	26	65 (19–225)	105 (29–385)
N	98	23	116 (27–504)	299 (65–1383)
Vasopressor treatmentd
A	6	19	1	1c
N	12	20	2 (1–6)	3 (1–9)
F	15	21	3 (1–7)	3 (1–10)
M	18	25	3 (1–9)	4 (2–12)
D	20	22	4 (1–10)	5 (2–14)
B	27	37	6 (2–15)	8 (3–22)
H	32	21	7 (3–17)	12 (5–30)
K	38	21	9 (4–22)	11 (4–27)
C	44	19	12 (4–30)	19 (7–52)
J	46	23	13 (5–31)	25 (10–65)
I	48	25	14 (5–42)	34 (11–107)
E	52	24	16 (6–42)	48 (17–132)
G	60	23	22 (9–54)	35 (14–91)
L	64	24	26 (10–67)	61 (23–165)

Center A had the lowest rate of treatment and was used as the reference. OR indicates odds ratio; CI, confidence interval.

^aValues are median of the lowest MAP value on the first day of treatment.

^bAny treatment represents administration of vasopressor and/or normal saline solution bolus of >10 mL/kg.

^cAdjusted for gestational age, birth weight z score, gender, Hispanic ethnicity, fetal number, and SNAP-II score.

^dVasopressor treatment represents dopamine, dobutamine, and/or epinephrine treatment.

^eAdjusted for gestational age, birth weight z score, gender, fetal number, and SNAP-II score.