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Table 3 Non-adjusted and adjusted linear regression models

From: Association between preoperative hemoglobin with length of hospital stay among non-cardiac and non-obstetric surgery patients: a secondary analysis of a retrospective cohort study

Outcome

Non-adjusted model

Model I

Model II

β (95% CI)

p-value

β (95% CI)

p-value

β (95% CI)

p-value

Hemoglobin level

 − 1.18 (− 1.64, − 0.71)

 < 0.0001

 − 0.99 (− 1.45, − 0.54)

 < 0.0001

 − 0.86 (− 1.31, − 0.41)

 < 0.0002

  1. Non-adjusted model adjust for: None
  2. Model I adjust for: mortality
  3. Model II adjust for: Gender, ASA classification, procedure length, Combined PASP and RVSP, mortality, Intrathoracic, systemic hypertension, Venous thromboembolism, Asthma, Renal failure (serum creatinine > 1.5 mg/dl), and Heart Rate
  4. CI Confidence Interval, LOS length of stay, HB hemoglobin, ASA American Society of Anesthesiologists, PASP pulmonary artery systolic pressure, RVSP right ventricular systolic pressure