Skip to main content

Table 3 Correlation of BMI with Thyroid Hormones and TPOAb

From: Investigating the prevalence of primary thyroid dysfunction in obese and overweight individuals: Tehran thyroid study

 

TSH (mIU/L)

FT4(ng/dL)

TPOAb (IU/ml)

Spearman

correlation

(CI)a

Crude % change (CI)b

Adjusted

% change (CI)c

Spearman

correlation

(CI)a

Crude % change (CI)b

Adjusted

% change (CI)c

Spearman

correlation

(CI)a

Crude % change (CI)b

Adjusted

% change (CI)c

Total

 BMI (kg/m2)

0.04* (0.01,0.07)

0.90* (0.20,1.60)

0.82* (0.11, 1.55)

−0.18* (− 0.21,−0.16)

−0.69* (− 0.81,−0.58)

−0.39* (− 0.51, − 0.27)

0.06* (0.03,0.08)

2.35* (1.52, 3.19)

1.08* (0.23, 1.95)

FEMALE

 BMI (kg/m2)

0.03 (− 0.01,0.06)

0.71 (− 0.25,1.67)

0.84 (− 0.17,1.86)

−0.16* (− 0.19,−0.12)

−0.56* (− 0.70,− 0.41)

-0.41* (− 0.57,−0.26)

0.06* (0.03,0,10)

2.45* (1.32, 3.58)

1.62* (0.42, 2.84)

MALE

 BMI (kg/m2)

0.01 (− 0.04,0.05)

0.33 (− 0.67,1.35)

0.62 (− 0.38,1.63)

−0.14* (− 0.18,−0.10)

−0.60* (− 0.79,−0.40)

− 0.44* (− 0.63,−0.25)

0.01 (− 0.03,0.05)

0.58 (− 0.62, 1.79)

0.16 (− 1.04,1.37)

  1. a95% CI based on 1000 bootstrap samples, b univariate linear regression model, c multiple linear regression model. *Statistically significant. P-values less than 0.05 were considered statistically significant. Confounding factors in the multiple regression analysis included age, sex, and smoking (and TPOAb only for TSH and FT4 outcomes). Natural log transformations were used for outcomes; as a result, % changes were calculated as 100*(ecoefficient-1); CI, 95% confidence interval