Table 2.

Summary of multiple regression analysis for variables predicting purchase intention among college students (n 192) from a large, public university in the Southwest USA

Variables	B	se (B)	β	t
Constant	36·31	13·30	–	2·73**
CI*	9·30	2·40	0·24	3·88***
RDCI†	4·22	2·41	0·11	1·76
SNK‡,§	3·67	0·72	0·33	5·09***
Potential confounding variables
Gender	14·77	2·49	0·37	5·93***
Age	−0·58	0·34	−0·11	−1·71
Frequency of dining out	−1·08	1·01	−0·07	−1·07
BMI║	0·25	0·31	0·051	−0·81
R 2	0·34
Adj. R 2	0·31
F value	12·99***

**P<0·01, ***P<0·001.

*Calorie information.

^†Recommended daily calorie intake information.

^‡Subjective nutrition knowledge.

^§Subjective nutrition knowledge: mean 6·46 (sd 1·76); range 0–10.

^║BMI: underweight (<18·5 kg/m²), healthy weight (18·5–24·9 kg/m²), overweight (25·0–29·9 kg/m²), obese (≥30·0 kg/m²).