Table 3 The multivariate results by linear regression.

From: The admission pH is a risk factor of preoperative deep vein thrombosis in geriatric hip fracture: a retrospective cohort study

Exposure

Non-adjusted model

Minimally-adjusted model

Fully-adjusted model

pH

1.59 (1.15, 2.20) 0.0046

1.58 (1.14, 2.18) 0.0054

1.54 (1.09, 2.17) 0.0144

pH tertiles

   

Low

Ref

Ref

Ref

Middle

1.15 (0.86, 1.53) 0.3586

1.14 (0.85, 1.52) 0.3857

1.11 (0.82, 1.51) 0.4961

High

1.29 (0.97, 1.71) 0.0816

1.27 (0.96, 1.69) 0.0965

1.25 (0.93, 1.69) 0.1424

P for trend

0.0797

0.0941

0.1358

  1. Data in the table: OR (95% CI) P value.
  2. Outcome variable: deep vein thrombosis. Exposed variables pH.
  3. The minimally adjusted model was adjusted for sex.
  4. The fully adjusted model was adjusted for sex, fracture classification, multiple injuries, time to operation, dementia, gastritis and activated partial thromboplastin time.
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