Table 4 The results of multiple logistic regressions model for factors affecting the hypothyroidism in case and control groups, YGA (Yazd Greater Area), 2017.

From: Impact of Drinking Water Fluoride on Human Thyroid Hormones: A Case- Control Study

Variable Variable subgroups (OR)* (CI 95%)** P Value
Gender Male 1   0.0001
Female 2.5 1.6–3.9
Family history of Thyroid Disease No 1   0.0001
Yes 2.7 1.6–4.6
Amount of Water Consumption One glass 1   0.001
2–3 glass 1.73 0.5–5.9 0.382
4–5 glass 4.1 1.2–14 0.024
More than 5 glass 3.25 0.8–11.9 0.075
Exercise Yes 1   0.0001
No 5.34 3.2–9 0.0001
Sometimes 3.66 2–6.6 0.001
Diabetes No 1   0.001
Yes 3.68 1.7–8
Hypertension No 1   0.013
Yes 3.22 1.3–8.2
Drinking Water Fluoride 0–0.29 mg/L 1   0.86
0.3–0.5 mg/L 1.034 0.7–1.53
  1. *Logistic Model (Enter), Adjusted odds ratio (OR), **Confidence intervals (CI 95%).