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Table 2 Hospitalization outcomes before and after propensity-score matching

From: Hospital days, hospitalization costs, and inpatient mortality among patients with mucormycosis: a retrospective analysis of US hospital discharge data

  Before propensity-score matching1 After propensity-score matching1
Characteristic Cases Non-Cases Pvalue2 Mean SE Cases Non-Cases Pvalue2 Mean SE
N (unweighted) 1,120 29,759,178     1,084 3,252    
N (weighted) 5,515 146,295,097     5,346 15,999    
Length of stay (days)           
 Mean (SD) 24.5 (32.0) 5.8 (8.3) < 0.001 18.6 0.4 24.5 (31.9) 8.0 (11.9) < 0.001 16.5 0.4
 Median (IQR) 14 (6–30) 4 (2–7)     14 (6–30) 4 (2–9)    
Mortality (%) 22.2% 3.6% < 0.001 18.7% 0.6% 22.1% 4.4% < 0.001 17.7% 0.6%
Discharge type among survivors (%)    < 0.001      < 0.001   
 Routine 46.0% 63.3%     46.0% 69.9%    
 Short-term hospital 9.6% 2.5%     9.7% 1.8%    
 Other transfers3 18.5% 19.3%     18.8% 12.3%    
 Home health care 24.8% 14.0%     24.3% 14.8%    
 Other/unknown 1.1% 0.9%     1.2% 1.1%    
Total Charges           
 Mean (SD) $237,090 ($283,375) $44,442 ($69,052) < 0.001 $192,648 $3,816 $237,114 ($285,769) $71,698 ($114,452) < 0.001 $165,417 $4,012
 Median (IQR) $128,682 $25,423     $127,171 $33,958    
($48,025 - $303,348) ($13,423 - $48,779)     ($47,653-$301,540) ($17,241 -$74,044)    
Total Costs           
 Mean (SD) $90,107 ($111,760) $16,582 ($24,509) < 0.001 $73,525 $1,505 $90,272 ($112,964) $25,746 ($41,207) < 0.001 $64,526 $1,579
 Median (IQR) $51,170 $9,943     $51,004 $12,327    
($17,869 - $112,910) ($5,518 - $18,392)     ($17,256 -$112,928) ($6,531 - $27,424)    
  1. Source: HCUP 2003–2010.
  2. [1] Non-mucormycosis hospitalizations from hospitals with at least one mucormycosis patient are matched 3:1 to mucormycosis hospitalizations using a greedy 8 to 1 digit matching algorithm.
  3. [2] Significance was tested for proportions using the Rao-Scott Chi-Square Test. Continuous measures were tested using an independent sample t-test.
  4. [3] Includes skilled nursing facility, intermediate care, and any other type of facility.
  5. Note: Charges and costs reported in 2011 USD.