. Author manuscript; available in PMC: 2019 Dec 1.

Published in final edited form as: Community Dent Oral Epidemiol. 2018 Jul 1;46(6):527–534. doi: 10.1111/cdoe.12373

Table 2.

Bivariate associations (Spearman correlation coefficients) between fluoride intake (AUC) and bone measures of the radius and tibia.

	Daily Fluoride Intake Period

	Radius

	Females				Males

Bone Measures	0–8.5 years (n=176)	8.5–14 years (n=160)	14–17 years (n=154)	0–17 years (n=139)	0–8.5 years (n=160)	8.5–14 years (n=137)	14–17 years (n=138)	0–17 years (n=125)

Trabecular

Trabecular content (mg)	0.03	0.09	0.13	0.08	0.04	0.04	0.17^*	0.05

Trabecular density (mg/cm³)	0.05	0.09	0.13	0.07	0.03	0.05	0.15	0.04

Cortical

Cortical content (mg)	0.004	0.15	0.10	0.10	0.07	0.07	0.19^*	0.12

Cortical density (mg/cm³)	0.02	− 0.03	−0.02	−0.02	0.09	0.06	0.07	0.13

Strength

BSI (mg²/mm⁴)	0.01	0.14	0.13	0.08	0.09	0.09	0.24^**	0.16

pSSI (mm³)	0.01	0.11	0.10	0.10	0.09	0.08	0.18^*	0.13

	Tibia

	Females				Males


Bone Measures	0–8.5 years (n=176)	8.5–14 years (n=160)	14–17 years (n=154)	0–17 years (n=139)	0–8.5 years (n=160)	8.5–14 years (n=137)	14–17 years (n=138)	0–17 years (n=125)

Trabecular

Trabecular content (mg)	0.14	0.14	0.12	0.14	0.06	0.05	0.27^**	0.11

Trabecular density (mg/cm³)	0.05	0.01	0.09	−0.02	0.09	0.11	0.22^*	0.16

Cortical

Cortical content (mg)	0.05	0.16	0.20^*	0.11	0.13	0.19^*	0.30^**	0.24^*

Cortical density (mg/cm³)	0.07	−0.08	−0.16	−0.05	0.11	−0.03	0.01	0.07

Strength

BSI (mg²/mm⁴)	0.03	0.15	0.19^*	0.10	0.13	0.14	0.27^**	0.22^*

pSSI (mm³)	0.05	0.21^*	0.21^**	0.15	0.17^*	0.18^*	0.30^**	0.25^**

Significant at 0.05 level

^**

Significant at 0.01 level