Table 1.

Characteristics of mesothelioma patients and tumors

	NCI	UC	Total*
	n [%]	n [%]	n [%]
Patient characteristics	241 [100]	198 [100]	434 [100]
Gender
Male	158 [66]	136 [69]	292 [67]
Female	83 [34]	62 [31]	142 [33]
Age at diagnosis, y
<20	3 [1]	0 0	3 [1]
20–29	12 [5]	4 [2]	15 [3]
30–39	18 [7]	5 [3]	21 [5]
40–49	29 [12]	5 [3]	33 [8]
50–59	61 [25]	44 [22]	105 [24]
60–69	71 [29]	77 [39]	147 [34]
70–79	43 [18]	57 [29]	100 [23]
≥80	4 [2]	8 [4]	12 [3]
Ethnicity
White, non-Hispanic	223 [93]	192 [97]	410 [94]
White, Hispanic	11 [5]	0 [0]	11 [3]
Black	4 [2]	3 [2]	7 [2]
Asian	3 [1]	3 [2]	5 [1]
Asbestos exposure†
Yes	135 [56]	126 [64]	258 [59]
No	59 [24]	35 [18]	92 [21]
Unknown	47 [20]	37 [19]	84 [19]
Mesothelioma site
Pleura	140 [58]	148 [75]	286 [66]
Peritoneum	92 [38]	44 [22]	133 [31]
Pericardium	2 [1]	0 [0]	2 [0]
Pleura and peritoneum	0 [0]	3 [2]	3 [1]
Tunica vaginalis	7 [3]	3 [2]	10 [2]
Tumor histology
Epithelial	207 [86]	157 [80]	359 [83]
Sarcomatoid/biphasic	17 [7]	36 [18]	53 [12]
Unknown	17 [7]	5 [3]	22 [5]
Personal history of other cancer
Yes	58 [24]	27 [14]	84 [19]
No	183 [76]	171 [86]	350 [81]
Cancer in first-degree relative
Yes	147 [61]	142 [72]	286 [66]
No	94 [39]	54 [28]	146 [34]
Unknown	0	2	2

NCI, National Cancer Institute; UC, University of Chicago.

^*Five patients were treated at both clinics; duplicate records were excluded.

^†Asbestos exposure by self-report.