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Table 2 Health care utilization among IPF patients during the 12-month baseline period

From: Characterizing idiopathic pulmonary fibrosis patients using US Medicare-advantage health plan claims data

  IPF Cohort
(N= 4,716)
IPF Diagnostic Testing Subgroup
(N= 2,518)
N % N %
No Medication within 12 Months of Cohort Entry 570 12.1 298 11.8
One Medication within 12 Months of Cohort Entry 136 2.9 59 2.3
Two Medications within 12 Months of Cohort Entry 100 2.1 46 1.8
Three or More Medications within 12 Months of Cohort Entry 3,910 82.9 2,115 84.0
Any Hospitalization within 12 Months of Cohort Entry (yes/no) 2,396 50.8 1,401 55.6
Critical Care Evaluation and Management 722 15.3 447 17.8
  Mean (SD) Median IQR Mean (SD) Median IQR
Number of Physician Visitsa 14.8 (10.8) 12.0 8.0 - 19.0 16.2 (11.6) 14.0 9.0 - 21.0
Number of Emergency Department Visitsa 1.4 (2.2) 1.0 0.0 - 2.0 1.5 (2.4) 1.0 0.0 - 2.0
Number of Inpatient Stays 0.9 (1.2) 1.0 0.0 - 1.0 1.0 (1.3) 1.0 0.0 - 1.0
Number of Inpatient Days 7.2 (18.0) 1.0 0.0 - 6.0 8.4 (19.3) 1.0 0.0 - 8.0
Number of 3-Digit Diagnosis Codes 31.6 (14.7) 29.0 21.0 - 40.0 34.4 (14.9) 32.0 23.0 - 43.0
Number of Surgical Proceduresa 7.6 (7.2) 6.0 3.0 - 10.0 8.4 (7.9) 6.0 3.0 - 11.0
Number of Anesthesia Proceduresa 0.5 (0.9) 0.0 0.0 - 1.0 0.5 (0.9) 0.0 0.0 - 1.0
Number of Unique Drugs Dispensed 10.3 (7.4) 10.0 5.0 - 15.0 10.8 (7.7) 10.0 5.0 - 16.0
Medical Costs ($) 6,033.9 (9,319.3) 3,932.7 2,156.7 - 6,986.0 6,983.1 (9,791.5) 4,479.6 2,684.1 - 7,864.9
Facility Costs ($) 12,474.9 (22,355.4) 4,845.6 864.9 - 15,263.1 15,086.9 (26,551.3) 6,430.2 1,424.9 - 18,539.2
Pharmacy Costs ($) 2,675.3 (5,854.3) 1,350.8 326.7 - 3,186.2 2,787.4 (5,989.5) 1,463.7 355.3 - 3,238.8
Total Costs ($) 21,184.2 (28,913.5) 11,865.2 5,465.4 - 25,713.4 24,857.5 (33,600.8) 13,798.3 6,739.4 - 30,886.0
  1. Optum Research Database – Medicare Advantage Population. Cohort Entry: 01 January 2008 - 30 September 2014
  2. Abbreviations: IR incidence rate per 1,000 person-years, IQR interquartile range, SD standard deviation, CI confidence interval, IPF idiopathic pulmonary fibrosis, GERD gastroesophageal reflux disease, GI gastrointestinal, MDD major depressive disorder
  3. aOne of each type counted per day