Table 2 Adjusted Risk Factor Associations for TSH, FT4 and T3.

From: Prevalence and Risk Factors of Thyroid Dysfunction in Older Adults in the Community

  TSH, % difference (95% CI) FT4, % difference (95% CI) T3, % difference (95% CI)
Model 1* Model 2† Model 1* Model 2 Model 1* Model 2
Sex
  Male (Female reference) −3.18
[−6.33, 0.07]
0.89
[−2.68, 4.59]
−0.93
[−1.78, −0.08]C
−1.25
[−2.17, −0.31]C
−2.32
[−3.28, −1.36]C
−1.75
[−2.80, −0.69]C
Race
  Black (White reference) −25.48
[−28.37, −22.48]C
−24.66
[−27.88, −21.29]C
−1.82
[−2.82, −0.81]C
−1.32
[−2.44, −0.18]C
−2.32
[−3.46, −1.17]C
−3.89
[−5.14, −2.63]C
Age
  65–70 (Reference) 0 0 0 0 0 0
  71–75 −0.21
[−4.71, 4.50]
0.51
[−4.17, 5.42]
−0.19
[−1.38, 1.00]
−0.02
[−1.25, 1.24]
−2.36
[−3.69, −1.02]C
−2.15
[−3.53, −0.75]C
76–80 4.47
[−0.57, 9.76]
3.34
[−1.84, 8.78]
−0.67
[−1.92, 0.61]
−0.53
[−1.85, 0.82]
−4.64
[−6.03, −3.24]C
−4.31
[−5.76, −2.83]C
  80+ 10.03
[4.26, 16.11]C
9.10
[3.10, 15.46]C
0.03
[−1.35, 1.43]
0.10
[−1.37, 1.60]
−7.39
[−8.86, −5.90]C
−6.58
[−8.15, −4.99]C
BMI (kg/m2)
  <25.0 (Reference) 0 0 0 0 0 0
  25.0–29.9 −1.40
[−5.39, 2.77]
−1.11
[−5.23, 3.18]
−1.79
[−2.83, −0.74]C
−1.61
[−2.70, −0.51]C
2.41
[1.16, 3.66]C
2.31
[1.02, 3.61]C
30.0+ −2.29
[−6.42, 2.02]
−3.36
[−7.62, 1.10]
−1.95
[−3.04, −0.85]C
−1.92
[−3.07, −0.76]C
3.75
[2.43, 5.08]C
3.46
[2.08, 4.86]C
Smoking History
  Current Smoker (Reference) 0 0 0 0 0 0
  Former Smoker 13.58
[5.92, 21.79]C
14.33
[6.57, 22.65]C
−4.50
[−6.22, −2.75]C
−4.26
[−6.00, −2.49]C
−5.40
[−7.36, −3.40]C
−5.97
[−7.92, −3.98]C
  Never Smoker 20.20
[11.97, 29.05]C
19.55
[11.19, 28.53]C
−5.35
[−7.08, −3.58]C
−4.93
[−6.71, −3.11]C
−4.84
[−6.84, −2.80]C
−5.92
[−7.93, −3.86]C
Drinking History
  Current Drinker (Reference) 0 0 0 0 0 0
  Former Drinker −1.13
[−5.00, 2.90]
0.64
[−3.37, 4.81]
−0.86
[−1.88, 0.16]
−0.91
[−1.96, 0.15]
3.96
[2.74, 5.19]C
4.10
[2.85, 5.37]C
  Never Drinker 6.20
[1.43, 11.19]C
4.28
[−0.66, 9.47]
−1.26
[−2.42, −0.08]C
−0.69
[−1.95, 0.57]
3.12
[1.74, 4.53]C
3.44
[1.96, 4.95]C
  1. *Adjusted for age category, sex and race, Adjusted for variables in Model 1 plus BMI category, smoking history, drinking history, physical activity, prevalent CVD and Anti-TPO Positivity, CP Value < 0.05.