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Table 2 Prevalence and unadjusted odd ratios (OR) of factors associated with long ICU stay (> 48 h) among patients admitted to SWS hospitals by diabetes status (2014–2017). Bolded are significant associations

From: Factors associated with long intensive care unit (ICU) admission among inpatients with and without diabetes in South Western Sydney public hospitals using the New South Wales admission patient data collection (2014–2017)

Variables Diabetes Non-Diabetes
Year of admission n (%) OR [95%CI] n (%) OR [95%CI]
 2014–2015 176 (48.9) 1.00   751 (45.1) 1.00  
 2015–2016 174 (44.3) 0.83 [0.62, 1.11] 722 (42.5) 0.90 [0.79, 1.03]
 2016–2017 187 (40.4) 0.71 [0.54, 0.94] 853 (43.0) 0.93 [0.82, 1.06]
Demography
 Age groups
  18-34 yrs 14 (27.5) 1.00   182 (36.0) 1.00  
  35-44 yrs 27 (37.0) 1.55 [0.71, 3.37] 175 (41.0) 1.31 [1.01, 1.71]
  45-54 yrs 70 (48.3) 2.47 [1.23, 4.95] 293 (44.0) 1.45 [1.14, 1.84]
  55-64 yrs 136 (47.1) 2.35 [1.22, 4.53] 457 (47.9) 1.68 [1.35, 2.10]
  65-74 yrs 160 (44.6) 2.12 [1.11, 4.07] 544 (45.3) 1.52 [1.23, 1.88]
  75 yrs. and over 130 (43.5) 2.03 [1.05, 3.92] 675 (43.0) 1.35 [1.09, 1.66]
 Sex
  Women 206 (43.3) 1.00   875 (39.0) 1.00  
  Men 340 (45.9) 1.12 [0.89, 1.41] 1451 (46.6) 1.35 [1.21, 1.51]
 Marital status
  Marriedp 319 (43.3) 1.00   1325 (45.0) 1.00  
  Previously married† 151 (47.9) 1.03 [0.70, 1.51] 561 (41.2) 0.91 [0.77, 1.08]
  Never married 73 (45.9) 0.85 [0.62, 1.16] 427 (43.0) 1.05 [0.91, 1.22]
 Country of birth
  Australia 230 (45.9) 1.00   1186 (43.0) 1.00  
  America 23 (62.2) 1.97 [0.99, 3.91] 50 (41.0) 0.91 [0.63, 1.32]
  Asia 132 (44.0) 0.88 [0.66, 1.17] 475 (46.0) 1.14 [0.99, 1.32]
  Africa 12 (46.1) 1.03 [0.47, 2.26] 48 (47.1) 1.12 [0.75, 1.66]
  Europe 101 (41.7) 0.84 [0.62, 1.15] 424 (42.7) 0.99 [0.86, 1.15]
  Pacific 47 (43.5) 0.89 [0.58, 1.35] 137 (42.2) 0.96 [0.76, 1.21]
 Residence
  Peri-urban 201 (48.2) 1.00   855(46.6) 1.00  
  Urban 345 (43.2) 0.82 [0.64, 1.03] 1471 (42.0) 0.83 [0.74, 0.93]
 Hospital health insurance cover
  Full hospital cover 69 (48.2) 1.00   334 (45.9) 1.00  
  No hospital cover 477 (44.4) 0.83 [0.54, 1.18] 1992 (43.2) 0.91 [0.78, 1.06]
Mode of separation from the hospital
 Deaths
  No 472 (43.7) 1.00   1913(42.0) 1.00  
  Yes 74 (55.0) 1.57 [1.09, 2.24] 413 (53.7) 1.56 [1.34, 1.82]
Primary admission diagnosis, ICD-10 (Ref = No)
 Diseases of the Nervous system 15 (57.7) 1.75 [0.79, 3.83] 63 (51.0) 1.34 [0.94, 1.92]
 Diseases of the Respiratory system 48 (38.1) 0.73 [0.50, 1.07] 311 (43.0) 0.96 [0.82, 1.12]
 Diseases of the Circulatory system 246 (51.3) 1.44 [1.14, 1.81] 246 (51.0) 1.44 [1.14, 1.81]
 Diseases of the Digestive system 51 (48.1) 1.19 [0.80, 1.77] 234 (38.8) 0.83 [0.70, 0.98]
 Diseases of the Musculoskeletal/Connective system 4 (18.2) 0.28 [0.09, 0.82] 24 (27.0) 0.49 [0.30, 0.78]
 Diseases of the Skin/Subcutaneous system 5 (45.4) 1.05 [0.32, 3.47] 9 (21.9) 0.37 [0.18, 0.78]
 Diseases of the Endocrine/nutritional/metabolic system 546 (44.9) 0.58 [0.34, 0.87] 31 (39.0) 0.81 [0.51, 1.29]
Presence of any comorbidities
 No 140 (42.3) 1.00   806 (38.6) 1.00  
 Yes 397 (44.9) 1.11 [0.86, 1.43] 1484 (45.6) 1.33 [1.19, 1.49]
  1. ICU Intensive care unit, ICD International Classification of Diseases 10th revision (ICD-10), n number, OR odd ratio, p includes de facto, † Widowed/separated/divorced, ‡ Peri urban includes Wollondilly, Camden, Wingecarribee Local Government Areas (LGA) while Urban includes Campbelltown, Fairfield, Bankstown-Lidcombe LGAs