. Author manuscript; available in PMC: 2019 Jun 1.

Published in final edited form as: Public Health Nutr. 2018 Feb 19;21(9):1664–1670. doi: 10.1017/S136898001700430X

Table 3.

Adjusted analyses examining associations between reflection spectroscopy (RS) scores for participants in Study 1 (n 479) and National Cancer Institute (NCI) Fruit and Vegetable Screener (F&V Screener)-assessed fruits and vegetables (adjusted for age, race, sex, smoking) and between RS scores for participants in Study 2 (n 30) and Fred Hutchinson Cancer Research Center (FHCRC) FFQ data and plasma carotenoids (adjusted for age, race and sex), Eastern North Carolina, USA, February–April 2017

Independent variable	Estimate	SE	P value	R²

NCI F&V Screener – fruit (Study 1)	−1·34	1·85	0·471	0·08
NCI F&V Screener – vegetables (Study 1)	1·88	2·09	0·370	0·08
NCI F&V Screener – fruit and vegetables (Study 1)	0·04	1·25	0·975	0·08
FHCRC FFQ – fruit and vegetables (Study 2)	31·60	11·27	0·010	0·27
FHCRC-FFQ – carotenoids (mg) (Study 2)	0·007	0·001	<0·0001	0·59
Plasma carotenoids (nmol/l) (Study 2)	0·07	0·01	<0·0001	0·55