Table 4 Adjusted associations between specific-gravity adjusted urinary fluoride concentration and sleep measures (n = 1303)
From: Fluoride exposure and duration and quality of sleep in a Canadian population-based sample
Outcome | Association (95% CI) for change in outcome per: | Â | |
|---|---|---|---|
0.5 mg/L | IQR (0.62 mg/L) | p | |
Sleep Durationa | |||
 Less than recommended | 1.02 (0.93, 1.13) | 1.02 (0.94, 1.10) | .64 |
 Recommended (ref) | – | – |  |
 More than recommended | 0.91 (0.74, 1.13) | 0.93 (0.80, 1.10) | .40 |
Trouble Sleepingb | 0.96 (0.89, 1.04) | 0.97 (0.91, 1.03) | .37 |
Daytime Sleepinessb | 1.00 (0.92, 1.08) | 1.00 (0.94, 1.06) | .95 |