Plain water consumption is associated with lower intake of caloric beverage: cross-sectional study in Mexican adults with low socioeconomic status

Table 3 Probability and differences in consumption of CB according to PW intake in adults

		Coefficient	Standard error	Z	P	95% CI
First stage: Probit model
CB^α†
PW^α		−0.5406	0.2482	2.18	0.029	−1.0271 – -0.0541
Low-fat milk, skim milk and beverages without added sugar (mL)^α		−0.8721	0.1518	5.74	<0.001	−1.1698 – -0.5744
Second stage: multiple linear regression model
CB (mL)^†
PW (mL)		−0.1924	0.0187	−10.24	<0.001	−0.2292 – -0.1555
Low-fat milk, skim milk and beverages without added sugar (mL)		−0.4673	0.0552	−8.46	<0.001	−0.5757 – -0.3590
Age (years)		−0.2708	1.6067	−0.17	0.8	−3.4199 – 2.8782
Sex (0 = male, 1 = female)		−279.5922	43.8127	−6.38	<0.001	−365.46 – -193.72
BMI (kg/m²)		6.2841	3.4234	1.84	0.066	−0.4257 – 12.9939
Education	1 = Elementary	1
	2 = High school	108.9816	36.9371	2.95	0.003	36.586 – 181.377
	3 = Bachelor’s degree	257.6571	67.6873	3.81	<0.001	124.99 – 390.32
Physical activity	1 = Light	1
	2 = Moderate	20.5962	37.7636	0.55	0.585	−53.41 – 94.611
	3 = Vigorous	80.8213	50.0588	1.61	0.106	−17.29 – 178.93
Constant		1392.072	135.28	10.29	<0.001	1126.91 – 1657.23

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