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Table 6 Comparison of the annualized medication cost ($US/person) between the "Most costly" COPD patients and the remainder.

From: Determinants of elevated healthcare utilization in patients with COPD

Pharmacological classification

"Most costly"* (n = 98)

The remainder (n = 291)

P value†

Total

709 (420 - 1171)

340 (191 - 636)

 

R- Respiratory System

242 (118 - 400)

154 (56 - 330)

0.01

C- Cardiovascular System

78 (24 - 151)

15 (1 - 61)

<0.001

A- Alimentary Tract & Metabolism

48 (18 - 103)

9 (2 - 35)

<0.001

J- General Antiinfectives for Systemic Use

17 (12 - 31)

12 (6 - 17)

<0.001

B- Blood and Blood Forming Organs

14 (3 - 42)

1 (0 - 5)

<0.001

N- Nervous System

11 (3 - 40)

4 (1 - 16)

<0.001

   N02- Analgesics

3.5 (1.5 - 8.5)

1.3 ( 0.3 - 3.5)

<0.001

   N05, N06- Psycholeptics, Psychoanaleptics

0.8 (0 - 8.6)

0.2 (0 - 3.7)

0.02

M- Musculo-Skeletal System

5 (2 - 25)

4 (1 - 12)

0.01

H- Systemic Hormonal Preparations, Excluding Sex Hormones

4 (1 - 11)

1 (0 - 4)

<0.001

D- Dermatologicals

4 (1 - 10)

2 (0 - 7)

0.002

G- Genitourinary System & Sex Hormones

3 (0 - 69)

1 (0 - 17)

0.05

S- Sensory Organs

3 (1 - 11)

1 (0 - 5)

<0.001

L- Antineoplastic and Immunomodulating Agents

0 (0 - 0)

0 (0 - 0)

0.001

P- Antiparasitic Products, Insecticides and Repellants

0 (0 - 0)

0 (0 - 0)

<0.001

  1. Values are presented as median (25 - 75 percentiles).
  2. * The "most costly" patients are those whose annualized utilization cost was within the upper 25 percentile.
  3. † Mann-Whitney U test.