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21.06.2017 | Original Contribution | Ausgabe 6/2018

European Journal of Nutrition 6/2018

Discrepancy in socioeconomic status does not fully explain the variation in diet quality between consumers of different coffee types

European Journal of Nutrition > Ausgabe 6/2018
Tommy Hon Ting Wong, Zhixian Sui, Anna Rangan, Jimmy Chun Yu Louie
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1007/​s00394-017-1488-x) contains supplementary material, which is available to authorized users.



Habitual consumers of different coffee types may vary in socioeconomic status (SES), which is an important determinant of diet quality. Nonetheless, research on diet quality among coffee consumers was scarce. We aimed to compare the diet quality of coffee consumers with different preferences towards coffee type and additive usage.


In this cross-sectional analysis, intake data of food, coffee, and additive usage from the adult respondents of the 2011–2012 Australian Health Survey were used. Participants were grouped according to the type of coffee (espresso and ground coffee, E&G; coffee made from coffee mixes and instant coffee, M&I; non-consumers, NC) and additives (milk, sugar, and intense sweetener) consumed. Adjusted food group intake was compared between consumption groups using general linear model.


E&G drinkers had better SES than M&I and NC. After adjusting for covariates, the mean dairy intake of E&G drinkers was 22.2% higher than M&I drinkers (p < 0.001) and 33.1% higher than NC (p < 0.001). Mean discretionary food intake of E&G drinkers was 12.1% lower than M&I (p = 0.003) and 12.3% lower than NC (p = 0.001). In terms of additive usage, non-users of coffee additive had the lowest dairy food intake and the highest discretionary food intake.


Coffee consumers’ different preferences towards coffee type and additive usages reflected significant variations in their diet quality, even after adjustment of SES. Therefore, future epidemiological studies should consider separating coffee drinkers according to their habitual consumption of different types of coffee.

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