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. 2019 Mar 18;11(3):653. doi: 10.3390/nu11030653

Table 7.

Logistic regression on the relationship between consumers’ perception of coffee health benefits and motives for coffee consumption and purchasing.

B S.E. Wald Sig. Exp(B) Tolerance VIF
Habit/pleasure −1.037 0.433 5.744 0.017 ** 0.355 0.980 1.020
Social −0.359 0.440 0.664 0.415 0.699 0.912 1.097
Energy −0.510 0.838 0.370 0.543 0.601 0.714 1.401
Price 0.706 0.373 3.585 0.058 * 2.027 0.961 1.041
Sustainability −0.627 0.631 0.987 0.320 0.534 0.755 1.325
Aroma −0.816 0.412 3.925 0.048 ** 0.442 0.972 1.028
Constant 2.099 1.403 2.236 0.135 8.155

Dependent variable: level of coffee health benefit perception—(0) negative and neutral (average value below or equal to 3) vs. (1) positive (average value above 3). Note: *, ** significant at p < 0.10; p < 0.05. Omnibus tests: 0; VIF: between 1.020 and 1.041; Nagelkerke R-square: 0.313. The limited number of consumers with positive perceptions of coffee’s health benefits and with consumption behavior driven by therapeutic motives (one consumer) suggests not including the therapeutic component in the regression exercise. VIF: variable inflation factor.