Table 5.

Additive effect of immunotherapy and radiotherapy to chemotherapy

Subgroup	Hazard ratio	IT on CT 95% CI	p value	Hazard ratio	RT on CT 95% CI	p value
Male/squamous	0.915	0.618, 1.276	0.621	0.67	0.508, 0.878	0.004
Male/adenocarcinoma	0.869	0.721, 1.041	0.128	0.736	0.596, 0.899	0.002
Female/squamous	0.818	0.374, 1.604	0.567	nd	nd	nd
Female/adenocarcinoma	0.758	0.572, 0.985	0.038	nd	nd	nd

nd not determined due to a small number of patients in the subgroup