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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Cancer Causes Control. 2019 Jan 17;30(2):187–193. doi: 10.1007/s10552-019-1130-8

Table 2.

Sociodemographic characteristics of Be-Well cohort from baseline interview, as of June 30, 2018

KPNC KPSC Totala

N=770 N (%) N=511 N (%) N=1281 N (%)
Gender
 Male 596 (77.4) 387 (75.7) 983 (76.7)
 Female 174 (22.6) 124 (24.3) 298 (23.3)
Race/Ethnicity
 White 619 (80.4) 402 (78.7) 1021 (79.7)
 Black or African American 38 (4.9) 36 (7.1) 74 (5.8)
 Hispanic 50 (6.5) 48 (9.4) 98 (7.6)
 Asian 49 (6.4) 17 (3.3) 66 (5.1)
 Other 14 (1.8) 8 (1.6) 22 (1.7)
Age Group (y)
 <50 36 (4.7) 22 (4.3) 58 (4.5)
 50–64 199 (25.8) 123 (24.1) 322 (25.1)
 65–79 381 (49.5) 282 (55.2) 663 (51.8)
 ≥80 154 (20.0) 84 (16.4) 238 (18.6)
 Mean (SD) 70.0 (11.2) 69.4 (10.2) 69.8 (10.8)
Marital Status
 Never married 42 (5.5) 15 (2.9) 57 (4.5)
 Married or living as married 534 (70.2) 367 (72.0) 901 (70.9)
 Separated/Divorced 105 (13.8) 75 (14.7) 180 (14.2)
 Widowed 80 (10.5) 53 (10.4) 133 (10.5)
Educational Attainment
 High school or less 127 (16.7) 96 (19.0) 223 (17.6)
 Some college 265 (34.8) 171 (33.8) 436 (34.4)
 College graduate 214 (28.1) 129 (25.5) 343 (27.1)
 Post-graduate 156 (20.5) 110 (21.7) 266 (21.0)
Household Income
 <$60K 227 (33.9) 175 (38.5) 402 (35.7)
 $60K–99K 172 (25.7) 126 (27.7) 298 (26.5)
 ≥$100K 271 (40.4) 154 (33.8) 425 (37.8)
Employment Status
 Currently employed 297 (38.6) 183 (35.8) 480 (37.5)
Overall Exposure to Chemical or Environmental Exposuresb
 Ever 523 (67.9) 324 (63.4) 847 (66.1)
 Never 247 (32.1) 187 (36.6) 434 (33.9)
Occupation Involving Chemical or Environmental Exposuresc
 Ever 265 (34.4) 184 (36.0) 449 (35.0)
 Never 505 (65.6) 327 (64.0) 832 (65.0)
Smoking History
 Never smoker 270 (35.2) 159 (31.1) 429 (33.5)
 Former smoker 446 (58.1) 309 (60.5) 755 (59.0)
 Current smoker 52 (6.8) 43 (8.4) 95 (7.4)
Smoking History in Pack- Years, Mean (SD)
 Former smoker 25.6 (23.5) 26.4 (22.8) 25.9 (23.2)
 Current smoker 29.9 (23.3) 28.7 (20.5) 29.4 (22.2)
Body Mass Index at Diagnosis
 Normal weight (≤24.9) 198 (25.7) 136 (26.6) 334 (26.1)
 Overweight (25.0–29.9) 321 (41.7) 207 (40.5) 528 (41.2)
 Obese (≥30.0) 251 (32.6) 168 (32.9) 419 (32.7)
 Mean (SD) 28.8 (5.9) 27.8 (5.8) 28.4 (5.8)
a

Total unknown values: Marital Status n=10, Educational Attainment n=13, Household Income n=156, Smoking History n=2

b

Includes asbestos, chemicals/acids/solvents, coal/stone dusts, coal tar/pitch/asphalt, diesel engine exhaust, dyes, formaldehyde, gasoline exhaust, pesticides/herbicides, textile fibers/dusts, wood dust, x-rays/radioactive materials, smoke other than from cigarettes

c

Includes coal miner, furniture maker, hairdresser, nail salon worker, machinist, painter, printer, truck/taxi/bus driver, leather industry worker, rubber industry worker, paint industry worker, textile industry worker