Skip to main content
. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Addict Behav. 2019 Aug 25;100:106109. doi: 10.1016/j.addbeh.2019.106109

Table 1:

Description of study sample (N=601), current cigarette smokers enrolled in a smoking cessation trial at 3 diverse primary care clinics in San Francisco, CA from 2014 to 2015

Full sample (N=601) Cigarette-only smokers (N=292, 48.6%) Dual-use of cigarettes and e-cigarettes (N=63, 10.5%) Dual-use of cigarettes and cannabis (N=183, 30.4%) Poly-use of cigarettes, e-cigarettes, and cannabis (N=63, 10.5%) Significance (df)
Age (M, SD) 50.8 (11.4) 53.2 (11.2) 49.4 (10.6) 49.3 (11.3) 45.5 (10.8) F(3, 596)=10.7***
Gender female (%, N) 38.1% (229) 45.2% (132) 36.5% (23) 30.6% (56) 28.6% (18) χ2(3)=13.1**
Race/ethnicity (%, N) χ2(9)=8.5
NH White 31.5% (189) 30.8% (90) 30.2% (19) 31.2% (57) 36.5% (23)
NH Black 36.9% (222) 36.3% (106) 36.5% (23) 41.5% (76) 27.0% (17)
Hispanic 17.1% (103) 18.5% (54) 14.3% (9) 13.7% (25) 23.8% (15)
Other 13.8% (83) 13.4% (39) 19.0% (12) 13.7% (25) 11.1% (7)
Education (%, N) χ2(9)= 22.8**
Less than high school degree 21.1% (127) 24.0% (70) 15.9% (10) 19.1% (35) 19.0% (12)
High school degree 26.3% (158) 23.6% (69) 23.8% (15) 31.7% (58) 25.4% (16)
Some college 36.9% (222) 31.8% (93) 39.7% (25) 39.9% (73) 49.2% (31)
College degree 14.6% (88) 19.2% (56) 19.0% (12) 8.7% (16) 6.3% (4)
Clinic site (%, N) χ2(6)= 30.3***
ZSFG – RFPC 29.3% (176) 33.2% (97) 27.0% (17) 25.1% (46) 25.4% (16)
ZSFG – PHP 41.9% (252) 32.5% (95) 36.5% (23) 53.0% (97) 58.7% (37)
UCSF 28.8% (173) 34.2% (100) 36.5% (23) 21.9% (40) 15.9% (10)
Comorbidities1 (%, N)
HIV/AIDS 26.3% (158) 19.5% (57) 23.8% (15) 36.1% (66) 31.8% (20) χ2(3)=25.4***
Cancer 9.7% (58) 11.3% (33) 6.4% (4) 9.8% (18) 4.8% (3) χ2(3)=2.8
Mental disorder2 39.1% (235) 38.0% (111) 38.1% (24) 39.3% (72) 44.4% (28) χ2(3)=4.8
Alcohol dependence 10.7% (64) 11.6% (34) 11.1% (7) 8.7% (16) 11.1% (7) χ2(3)=1.3
Drug dependence 23.8% (143) 19.9% (58) 22.2% (14) 28.4% (52) 30.2% (19) Χ2(3)=9.5*
Cerebrovascular disease 7.8% (47) 7.5% (22) 7.9% (5) 7.7% (14) 9.5% (6) χ2(3)=0.7
Pulmonary disease 25.5% (153) 23.3% (68) 30.2% (19) 29.0% (53) 20.6% (13) χ2(3)=3.8
Cardiovascular disease 33.6% (202) 36.0% (105) 36.5% (23) 32.8% (60) 22.2% (14) χ2(3)=6.0

Note:

1

comorbidity data from medical records was missing for N=230 participants on all measures except for HIV/AIDS and cardiovascular disease (N missing = 310)

2

includes schizophrenic disorders, episodic mood disorders, anxiety, dissociative and somatoform disorders, posttraumatic stress disorder, and depressive disorder, not elsewhere classified

df = degrees of freedom; NH = Non-Hispanic; ZSFG – RFPC = Zuckerberg San Francisco General Hospital Richard H. Fine People’s Clinic, ZSFG – PHP = UCSF Positive Health Clinic at Zuckerberg San Francisco General Hospital; UCSF = University of California San Francisco General Internal Medicine Clinic;

*

p<.05;

**

p<.01;

***

p<.001.