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Table 1 Hospital characteristics (n = 214)

From: Association between the bed-to-nurse ratio and 30-day post-discharge mortality in patients undergoing surgery: a cross-sectional analysis using Korean administrative data

VariableCategoriesTotal
n (%)
Hospital typeTertiary hospital43 (20.1)
Secondary hospital171 (79.9)
Hospital ownershipPublic sector22 (10.3)
Educational foundation58 (27.1)
Medical or other corporation91 (42.5)
Private corporation43 (20.1)
Hospital locationSeoul48 (22.4)
Metropolitan cities62 (29.0)
Small and medium-sized cities104 (48.6)
Bed-to- physician ratioLess than 2.014 (6.5)
2.0–3.978 (36.5)
4.0–5.932 (15.0)
Over 6.090 (42.1)
Mean ± SDa6.3 ± 5.0
Bed-to-nurse ratioLevel 1 (less than 2.5)29 (13.6)
Level 2 (2.5–3.4)115 (53.7)
Level 3 (3.5–4.4)30 (14.0)
Level 4 (4.5 or greater)40 (18.7)
  1. aMean ± SD: mean ± standard deviation, used in GEE logistic regression for confounding variables