Table 5.

Quartiles of post-surgical D-Dimer as predictors of IDDVT after thoracic surgery.

Model	OR (95% CI)	p
D-Dimer 1st quartile†	0.08 (0.01–0.60)	0.0138*
D-Dimer 2nd quartile†	0.38 (0.13–1.12)	0.0784
D-Dimer 3rd quartile†	2.20 (1.03–4.74)	0.0428*
D-Dimer 4th quartile†	2.90 (1.36–6.16)	0.0056*
D-Dimer 1st quartile‡	0.08 (0.01–0.62)	0.0157*
D-Dimer 2nd quartile‡	0.35 (0.11–1.05)	0.0600
D-Dimer 3rd quartile‡	2.32 (1.05–5.15)	0.0379*
D-Dimer 4th quartile‡	2.93 (1.33–6.46)	0.0075*

Models are calculated as odds ratios using logistic regression, with p < 0.05

^*considered statistically significant for each coefficient.

^†Unadjusted odds ratios are for each quartile of D-Dimer test results predicting IDDTV.

^‡Odds ratios, adjusted for age and operative method.