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Table 4 Differences and odds ratios for in-hospital outcomes in SVI/B patients with and without obesity ages 18 years and older from the National Inpatient Sample (2017)

From: Severe vision impairment and blindness in hospitalized patients: a retrospective nationwide study

Outcome Non-obese and SVI/B
N = 32,201
Obese and SVI/B
N = 4,999
Univariate
Mean Difference
(95 % CI) P-value Multivariate
Mean Difference
(95 % CI) P-value
Mean length of stay, days 6.0 6.4 0.4 (-0.3-1.0) 0.06 0.5 (-0.1- 1.2) 0.12  
Mean charge per case, US dollars $58,882 $67,456 $8,574 (1,805 − 15,662) 0.01 $9,821 (1,375 − 18,268) 0.02  
    Univariate
Odds Ratio
   Multivariate
Odds Ratio
   
In-hospital mortality, n (%) 1,320 (4.1) 154 (3.1) 0.7 (0.5-1.0) 0.1 0.64 (0.4-1.0) 0.07  
Discharged to home, n (%) 12,268 (38.1) 2,154 (43.1) 1.2 (1.0-1.3) < 0.01 1.0 (0.9–1.2) 0.68  
  1. *Variables adjusted for confounders in multivariate analysis include age, gender, race, median household income, insurance and comorbidities measured using the Charlson comorbidity index), hospital bed size, teaching status, urban location, and region
  2. SVI/B: Severe vision impairment/blindness