OTOR and Constipation: FDP (OR: 1.004, 95% CI: 1.001–1.007), D-dimer (OR: 1.036, 95% CI: 1.007–1.067), and free fatty acid levels (OR: 1.211, 95% CI: 1.035–1.416) were also independently associated with acute constipation in the adjusted model (Table 2).