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. Author manuscript; available in PMC: 2025 Sep 13.
Published in final edited form as: Community Sci. 2024 Sep 13;3(3):e2024CSJ000088. doi: 10.1029/2024csj000088

Table 6: Cancer-Associated Behaviors.

The 2017 Environmental Health Survey used community-based participatory action research strategies and snowball sampling of 100 adults in Knights Landing, California. Yolo County results were from random samples collected through the California Health Interview Survey (CHIS) (UCLA Center for Health Policy Research n.d.). Categorical data are presented as the proportion of respondents with 95% binomial confidence intervals (CI) and numerical data are presented as mean with CI. Significant differences between the Knights Landing and county samples are noted as * p < 0.05.

Cancer-Associated Behaviors Environmental Health
Survey
CHIS
Sample (n)= adults in
Knights Landing
recruitment zones
Sample= randomly
called adults in Yolo
County
% or Mean 95% CI % 95% CI
Tobacco Use n= 97 n= 242, 2016- 2017
Current Tobacco Smokers * 21% (13, 30) 6% (2, 9)
 Mean Years Smoked (n=19) 15 (10, 19) -- --
 Mean Cigarettes per Day (n=19) 16 (7, 24) -- --
Former Tobacco Smokers * 10% (5, 18) 17% (10, 25)
 Mean Years Smoked (n=9) 13 (4, 23) -- --
Other Smokers in Home or Housing Unit n= 96 --
 Yes 25% (17, 35) -- --
Cannabis Use n= 93 n= 381, 2015- 2016
Current Cannabis Smokers 19% (12, 29) -- --
 Mean Years Smoked (n=17) 19 (12, 27) -- --
 Mean Days of Use in Past 30 Days (n=16) 23 (17, 29) -- --
Former Cannabis Smokers 5% (2, 12) -- --
 Mean Years Smoked (n=3) 7 (0, 19) -- --
 Mean Days of Use in 30 Days (n=3) 11 (0, 52) -- --
Ever Smoked Cannabis * 25% (17, 34) 50% (33, 67)
Electronic Cigarette or Vaporizer Use n= 97 n= 242, 2016- 2017
Current Electronic Cigarette User 5% (2, 12) 3% (0, 6)
 Mean Years of Use (n=5) 1 (1, 2) -- --
Former Electronic Cigarette User 4% (1, 10) -- --
 Mean Years of Use (n=4) 1 (0, 2) -- --
Chewing Tobacco Frequency n= 97 --
Every day 1% (0, 6) -- --
Some days 2% (0, 7) -- --
Not at all 97% (91, 99) -- --
Alcohol Use n=42 n= 252, 2017- 2018
Binge-drink at least once in an average month 45% (30, 61) 48% (32, 65)
 Mean number of days binge-drink in average month 5 (3, 7) -- --
Daily Fruit and Vegetable Consumption n= 91 --
Consume 5 or more servings of vegetables a day 19% (11, 28) -- --
 Mean servings of fruits and vegetables per day 3 (3, 4) -- --

Publicly available 2016 AskCHIS Neighborhood Edition (UCLA Center for Health Policy Research n.d.) estimates are included here for reference for the two census tracts that represent Knights Landing and are not recommended for statistical comparisons: current smoker 9% (7, 11) and current electronic cigarette user 3% (2, 4). Conversely, publicly available 2020 California Health Maps data (University of California San Francisco n.d.) reveals a discrepancy in health agency monitoring estimates of adults who are current smokers: 7% for region Yolo 1 (A0766) and 16% for region Sutter (B0403).