From: Fluoride exposure and pubertal development in children living in Mexico City
Specific-gravity adjusted childhood urinary fluoride | |||
---|---|---|---|
N | HR (95% CI) | p-value | |
Menarche | |||
Continuous fluoride (mg/L) | 175 | 0.82 (0.51, 1.33) | 0.42 |
1st tertile (< 0.48) | 68 | Reference | – |
2nd tertile (0.49–0.69) | 53 | 0.98 (0.64, 1.51) | 0.94 |
3rd tertile (0.70–2.61) | 55 | 0.76 (0.50, 1.17) | 0.21 |