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Table 3 Health care utilization by overall adherence with tobramycin inhalation solution, N = 804.

From: Adherence with tobramycin inhaled solution and health care utilization

  Low utilization ≤2 cycles (n = 570) Medium utilization >2 to <4 cycles (n = 180) High utilization ≥4 cycles (n = 54)
Patients hospitalized (%) 42.9% 40.6% 25.9%
Median inpatient costs, IQR $23,619 $16,814 $20,610
  $11,566-55,446 $9,527-41,021 $8,076-64,799
Median outpatient costs, (excludes drug costs) IQR $6,317 $5,463 $4,033
  $2,564-14,423 $2,410-13,653 $2,159-8,444
Median outpatient prescription drug costs, IQR $17,850 $35,892 $46,708
  $10,353-27,260 $27,482-46,768 $35,125-60,969
% of outpatient prescription drug costs for TIS, median 29% 41% 45%
  1. IQR = interquartile range; TIS = tobramycin inhalation solution