Table 1.

Readmission risk estimates and healthcare costs associated with index admissions and readmissions of PH and its sub-types.

PH and its sub-types	Number of index admissions	Number of 30-day readmissions	Readmission risk	Cost of index admission $ (IQR)	Cost of readmissions $ (IQR)
Total PH	14,659	2797	19%	35,746 (19,952.5–68,417.5)	36,748.5 (19,535–75,130)
Primary PH	1433	247	17%	46,132 (25,384–85,647)	41,604.5 (22,481.5–84,420.5)
Secondary PH	13,226	2550	18%	34,893 (19,670–66,143)	36,279 (19,059–74,679)

PH: pulmonary hypertension; IQR: interquartile range.