Correlation between Body Mass Index and Thyroid Function in Euthyroid Individuals in Greece

Table 1

Descriptive statistics by gender for basic somatometric characteristics and thyroid parameters.

Descriptive statistics by gender
	n	Mean	Standard deviation	Median	1st quartile	3rd quartile	Min.	Max.	P value^†
Age (years)
Total	736	52.5	15.4	54.0	41.0	65.0	20.0	79.0	0.015*
Male	118	54.4	15.7	56.5	43.0	67.5	20.0	79.0	0.010*
Female	616	52.1	15.3	53.0	40.0	64.0	20.0	79.0	0.010*
Weight (kg)
Total	736	75.9	17.5	73.2	62.2	86.1	38.1	142.3	0.020*
Male	118	85.8	18.5	82.5	72.6	97.0	54.0	142.0	0.010*
Female	616	74.1	16.7	72.0	61.7	83.7	38.1	142.3	0.010*
Height (m)
Total	736	1.62	0.089	1.610	1.550	1.670	1.35	1.92	0.175
Male	118	1.70	0.096	1.700	1.630	1.780	1.45	1.92	0.150
Female	616	1.60	0.078	1.600	1.550	1.650	1.35	1.90	0.010*
BMI (kg/m^2)
Total	736	29.05	6.31	28.46	24.52	32.84	14.38	53.15	0.250
Male	118	29.58	5.38	29.25	25.39	32.56	19.83	53.15	0.150
Female	616	28.96	6.48	28.13	24.37	32.88	14.38	51.42	0.010*
TT3 (ng/mL)
Total	736	1.12	0.25	1.10	0.98	1.21	0.35	3.19	0.018*
Male	118	1.13	0.26	1.13	0.96	1.24	0.62	2.22	0.012*
Female	616	1.12	0.25	1.10	0.98	1.21	0.35	3.19	0.010*
TT4 (μg/dL)
Total	736	7.30	1.44	7.30	6.42	8.10	0.83	13.20	0.320
Male	118	7.02	1.48	7.10	6.23	7.80	2.00	10.10	0.150
Female	616	7.37	1.40	7.40	6.50	8.19	1.20	13.20	0.024*
FT3 (pg/mL)
Total	736	2.86	0.48	2.83	2.59	3.11	1.08	6.70	0.148
Male	118	2.92	0.50	2.90	2.59	3.22	1.23	4.20	0.150
Female	616	2.85	0.48	2.81	2.60	3.10	1.08	6.70	0.010*
FT4 (ng/dL)
Total	736	1.15	0.78	1.07	0.96	1.21	0.52	14.15	0.020*
Male	118	1.08	0.24	1.06	0.93	1.17	0.52	2.12	0.010*
Female	616	1.17	0.85	1.08	0.97	1.21	0.63	14.15	0.010*
TSH (mU/L)
Total	736	2.81	2.09	2.11	1.28	3.80	0.40	9.92	0.005*
Male	118	2.99	2.43	1.98	1.29	4.09	0.40	9.90	0.010*
Female	616	2.79	2.02	2.12	1.28	3.77	0.41	9.92	0.010*

 ^†Kolmogorov-Smirnov normality test P value.
*Statistically significant result.