TABLE 4.

Mean and median expenditure and range in 2016 dollars by claim service category for Medicaid-enrolled (a) preterm infants (<37 weeks) with birth defects potentially related to Zika virus infection and with no reported birth defects and (b) term infants (≥37 weeks) with birth defects potentially related to Zika virus infection and with no reported birth defects in North Carolina, 2011–2016

(a)	Preterm infants with birth defects potentially related to Zika virus infection (n = 180)			Preterm infants with no reported birth defects (n = 36,226)			Mean expenditure ratio
Claim service category	Mean (SD)	Median (IQR)	Range	Mean (SD)	Median (IQR)	Range
<365 days
Total paid	93,209 (113,458)	50,669 (78,095)	21–628,128	17,366 (33,406)	6,877 (13,439)	0–1,290,659	5.4*
Inpatient facility	54,916 (80,716)	28,238 (40,951)	0–484,195	11,402 (24,947)	3,382 (9,871)	0–1,176,231	4.8*
Outpatient facility	2,750 (3,463)	1,650 (3,480)	0–18,259	494 (1,067)	161 (509)	0–36,077	5.6*
Professional/ physician	19,130 (23,047)	11,481 (21,219)	0–188,450	3,867 (6,801)	1,940 (2,679)	0–167,985	4.9*
Drug/ pharmacy	6,311 (24,052)	648 (5,190)	0–265,077	803 (3,587)	63 (222)	0–328,699	7.9*
(b)	Term infants with birth defects potentially related to Zika virus infection (n = 370)			Term infants with no reported birth defects (n = 328,835)			Mean expenditure ratio
Claim service category	Mean (SD)	Median (IQR)	Range	Mean (SD)	Median (IQR)	Range
<365 days
Total paid	57,749 (142,272)	21,016 (43,599)	84–2,107,324	3,384 (8,335)	2,433 (1,507)	0–3,191,215	17.1*
Inpatient facility	31,579 (116,994)	7,232 (21,565)	0–1,925,587	1,141 (6,034)	580 (276)	0–2,580,705	27.7*
Outpatient facility	3,444 (4,252)	2,072 (3,941)	0–26,637	316 (771)	92 (346)	0–136,750	10.9*
Professional/physician	9,947 (18,004)	5,058 (8,307)	0–188,971	1,324 (1,168)	1,172 (762)	0–104,180	7.5*
Drug/pharmacy	4,620 (24,273)	181 (947)	0–294,689	168 (1,965)	46 (140)	0–544,974	27.5*

^*p < .05 by Wilcoxon-Mann–Whitney test.