In the multivariable analysis, age (adjusted odds ratio [OR] 1.07; 95% confidence interval [CI], 1.00–1.14;
P
= 0.038) D‐dimer (adjusted OR 1.02; 95% CI, 1.00–1.03;
P
= 0.005), and transtricuspid pressure gradient (adjusted OR 1.03; 95% CI, 1.00–1.07;
P
= 0.015) were independently associated with hypoxia in patients with femoral neck fractures.