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Table 1 Comparison of population demographics and characteristics between feline control and hyperthyroid study groups

From: Association of Polybrominated Diphenyl Ethers (PBDEs) and Polychlorinated Biphenyls (PCBs) with Hyperthyroidism in Domestic Felines, Sentinels for Thyroid Hormone Disruption

Variable Control (31) Hyperthyroid (20) p-value
Age – median (5th–95th percentiles) 12 (3–20) 15 (11–18) 0.040
Gender – percent
 Male 55 45 0.56
 Female 45 55  
Total lipids (g/ml) – mean ± SD 0.0057 ± 0.002 0.0059 ± 0.001 0.22
Total T4 (μg/dl) – mean ± SD 2.15 ± 0.68 8.24 ± 4.05 <.001