Table 3. Cause-Specific HRs for Death Associated With Treatment With Carboplatin Compared With Cetuximab in Propensity Score–Matched and Inverse Probability–Weighted Populations.

Characteristic	HR (95% CI)
Entire cohort (n = 2724)	0.85 (0.78-0.93)
Primary site
Oropharynx (n = 1558)	0.82 (0.72-0.94)
Nonoropharynx (n = 1166)	0.88 (0.78-1.00)

Abbreviation: HR, hazard ratio.