Table 1.

Patients’ Characteristics and Their Percentages in Each Category

Characteristics	All Patients n=14	Patients with Pneumonitis n=8	Patients without Pneumonitis n=6	p-value
Mean Age (Years)	64.72	64.7	64.67	0.98
Sex
Female, n (%)	7 (50%)	4 (50%)	3 (50%)	1
Male, n (%)	7 (50%)	4 (50%)	3 (50%)
Smoking Status				0.86
Current Smokers, n (%)	7 (50%)	4 (50%)	3 (50%)
Ex-Smokers, n (%)	4 (28.6%)	2 (25%)	2 (33%)
Non-Smokers, n (%)	3 (21.4%)	2 (25%)	1 (16.7%)
Histology
Adenocarcinoma	8 (57.1%)	3 (37.5%)	5 (83.3%)	0.078
Squamous Cell Carcinoma	5 (35.7%)	5 (62.5%)	0 (0%)
Unknown	1 (7.2%)	0 (0%)	1 (16.6%)
PDL-1 Status				0.19
<1%	3 (21.4%)	1 (12.5%)	2 (33.3%)
1-49%	7 (50%)	4 (50%)	3 (50%)
>50%	2 (14.3%)	1 (12.5%)	1 (16.7%)
Unknown	2 (14.3%)	2 (50%)	0 (0%)

† Kruskal-Wallis ANOVA, two sided P.value<0.0