The Oslo Health Study: A Dietary Index Estimating Frequent Intake of Soft Drinks and Rare Intake of Fruit and Vegetables Is Negatively Associated with Bone Mineral Density

Table 4

Association between various indexes assumed to partially reflect the acid load and distal forearm bone mineral density. The index was reduced by omitting one by one of its components: linear regression.

Index type	B (SE)	β	T	P
(1) The complete Dietary Index^a	−0.023; (0.008)	−0.050	−3.003	.003
(2) Fruit juice	−0.017; (0.006)	−0.048	−2.869	.004
(3) Also raw vegetables	−0.010; (0.004)	−0.042	−2.452	.011
(4) Also cooked vegetables	−0.004; (0.002)	−0.044	−2.726	.006
(5) Also fruit/berries	−0.003; (0.001)	−0.048	−2.995	.003
(6) Also non-cola soft drinks	−0.003; (0.001)	−0.040	−2.523	.012

^aThe Dietary Index is the sum of intake frequency estimates of 2 diet items (colas and non-cola soft drinks) divided by the sum of intake estimates of 4 items (fruit/berries, cooked vegetables, raw vegetables/salads, and fruit juice). There were 5 response alternatives for beverages and 6 for the food items (see Section 2). Covariates: those mentioned in Table 2. Unstandardized (B) and standardized (β) regression coefficients are shown.