Multivariate analysis for 90-day OS for TS population can be seen in Table 6. Age (p < 0.0001, HR = 1.045) and male sex (p < 0.0001, HR = 1.547) were significantly associated with 90-day OS. 90-day mortality was the same in all ethnic groups. Higher median income (>$75,000) was associated with a better survival. As compared to Connecticut, worse survival was noted in Louisiana and Utah. Insured patients had a better 90-day OS than those on Medicaid (p = 0.0005, HR = 1.359) and those with unknown insurance (p = 0.0003, HR = 2.774). Married patients had a better OS than single (p = 0.0188, HR = 1.239) and unmarried/domestic partner patients (p = 0.0310, HR = 3.523). Right bronchus (p = 0.0001, HR = 2.652), bronchus unknown (p = 0.0012, HR = 6.926), and right lower lobe (p < 0.0001, HR = 1.386) were associated with worse 90-day mortality than the right upper lobe location. As compared to Stage I, Stages II–IV were associated with a worse OS with a progressively increasing HRs (all p < 0.0001, HR = 1.607–4.381). As compared to patients with adenocarcinoma, NSCLC-NOS (p < 0.0034, HR = 1.460), other (p < 0.0001, HR = 2.334), and squamous cell carcinoma (p < 0.0001, HR = 1.436) had a higher risk of 90-day mortality. Using well-differentiated tumors as a reference, 90-day mortality was higher in patients having poorly differentiated, undifferentiated, and unknown differentiated tumors. Pneumonectomies were associated with a significantly higher 90-day mortality than all other resection types (p = 0.0281 to <0.0001, HR = 0.418–0.775), except for sub-lobar, NOS which had a higher mortality (p = 0.0012, HR = 1.885). Patients who received radiation experienced a significantly lower 90-day mortality (p < 0.0001, HR = 0.217). Number of nodes examined was associated with better OS (p = 0.0001, HR = 0.984), but number of nodes positive and lymph node density were associated with worse OS. Similar 90-day mortality was noted to 2007 for years 2008–2012.