Table 3.

Bivariate associations study variables for WTC responders who underwent CT evaluations with the presence and absence of pleural abnormalities recorded on the ICOERD form.

	Pleural abnormalities
	Present	%	Absent	%	p value*
n	307	21.3	1146	78.9	-
Age (median, IQR) years	43 (37–50)		42 (36–48)		0.014
Height (median, IQR) meters	1.73 (1.68–1.80)		1.73 (1.65–1.80)		0.199
BMI (median, IQR), kg/m2	28.1 (25.1–31.6)		28.6 (26.0–31.7)		0.002
Gender
Male	259	21.4	954	78.6	0.639
Female	48	20.0	192	80.0
Race/ethnicity
Non-Latino White	184	23.9	585	76.1	0.040
Non-Latino Black	24	17.8	111	82.2
Latino	92	18.5	406	81.5
Non-Latino Other	7	13.7	44	86.3
Weight status
Underweight	0	0	5	100.0	0.067
Normal	69	27.1	186	72.9
Overweight	130	20.4	508	79.6
Obese	104	19.6	426	80.4
Smoking status
Current smoker	66	23.3	217	76.7	0.153
Former smoker	87	22.4	301	77.6
Never smoker	154	19.7	628	80.3
Pre-WTC occupations
Management/services	50	19.2	211	80.8	0.004
Construction trades	55	20.4	215	79.6
Laborers/cleaners	125	26.7	343	73.3
Transportation	19	21.1	71	78.9
Law enforcement	58	15.9	306	84.1
Pre-WTC asbestos exposure
Yes	95	26.8	260	73.2	0.003
No	212	19.3	886	80.7
Pre-WTC occupational exposures
, Yes	150	22.4	521	77.6	0.289
No	157	20.1	625	79.9
Arrival at WTC site
≤ 48 hours	150	20.1	595	79.9	0.341
> 48 hours	157	22.2	551	77.8
WTC exposure duration
>60 days	175	20.2	693	79.8	0.271
≤60 days	132	22.6	453	77.4
Spirometry pattern
Normal	183	21.4	671	78.6	0.457
Low FVC	81	19.4	337	80.6
Obstruction	43	23.8	138	76.2
Expiratory flows
FEV1, %predicted (mean, SD)	81.4 (19.2)		83.8 (18.0)		0.04
FVC, %predicted (mean, SD)	81.6 (17.4)		82.8 (15.6)		0.26

^*p values calculated for continuous variables with the Wilcoxon’s rank sum test.