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. 2020 May 15;15:1071–1083. doi: 10.2147/COPD.S239841

Table 7.

Costs of Different Groups at Different Times (n=174)

Intervention Control Z
Total medical costs, median (IQR)
Baseline 14,106.54 (9,475.00–23,269.05) 15,162.00 (10,297.36–22,183.10) 0.778
12 months 10,370.00 (2,354.70–27,410.50) 14,736.51 (10,837.20–27,410.50) 3.476**
12–24 months 8049.00 (2,669.00–16,595.20) 12,941.00 (8,159.95–17,834.92) 2.327*
Inpatient costs, median (IQR)
Baseline 11,585.50 (8,347.25–20,930.50) 12,897.50 (9,953.00–20,020.43) 0.917
12 months 8,392.50 (0–12,905.25) 12,122.50 (8,696.73–26,235.42) 4.245***
12–24 months 1,372.60 (0–11,902.60) 10,600.20 (5,137.35–14,930.02) 3.617***
ED-visit costs, median (IQR)
Baseline 524.00 (0–928.00) 0 (0–723.50) −2.082*
12 months 0 (0–585.70) 490.00 (0–998.50) 3.067**
12–24 months 422.50 (0–1,179.50) 567.00 (0–1,455.50) 0.945
Outpatient costs, median (IQR)
Baseline 673.90 (200.00–1,858.00) 700.00 (178.95–1,816.55) −0.05
12 months 2,089.00 (1,259.20–2,790.00) 1,250.00 (583.50–1,909.00) –4.67***
12–24 months 1,979.00 (922.30–3,837.55) 717.50 (422.00–1,163.00) −6.57***

Notes: *p<0.05; **p<0.01; ***p<0.001.