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Table 3 TT3 and FT3 hormones at different sampling times and in different exposure groups

From: Thyroid function in Danish greenhouse workers

 

TT3 (nmol/l)

FT3 (pmol/l)

 

Spring n = 121

Fall n = 78

Spring n = 120

Fall n = 86

Exposure groups

Mean (95%CI)

Mean (95%CI)

Mean (95%CI)

Mean (95%CI)

Low spraying load < 7.2

2.01 (1.93;2.10)

2.16 (2.01;2.31)

5.81 (5.57;6.05)

6.77 (6.2;7.35)a

High spraying load ≥ 7.2

2.08 (2.00;2.17)

2.18 (2.05;2.30)

6.07 (5.83;6.31)

6.28 (5.76;6.80)

Spraying hours pr year < 40

2.03 (1.95;2.10)

2.14 (2.01;2.28)

5.96 (5.73;6.19)

6.47 (5.93;7.01)

Spraying hours pr year ≥ 40

2.04 (1.97;2.12)

2.19 (2.05;2.32)

5.93 (5.71;6.15)

6.53 (5.99;7.07)

Uses gloves always

2.02 (1.88;2.15)

2.21 (1.96;2.45)

6.02 (5.63;6.41)

6.76 (5.81;7.72)

Uses gloves sometimes

2.06 (1.97;2.14)

2.23 (2.07;2.38)

5.90 (5.65;6.15)

6.52 (5.85;7.18)

Uses gloves never

2.04 (1.96;2.12)

2.10 (1.97;2.24)

5.95 (5.70;6.19)

6.40 (5.85;6.95)

Exposure up to 8 years

2.02(1.94;2.10)

2.18 (2.02;2.33)

6.05 (5.82;6.29)

6.39 (5.77;7.00)

Exposure more than 8 years

2.05 (1.97;2.12)

2.16 (2.04;2.28)

5.85 (5.63;6.06)

6.57 (6.08;7.06)a

Job task low exposure

1.97 (1.88;2.06)

2.20 (2.06;2.35)a

5.79 (5.52;6.05)

6.41 (5.81;7.01)a

Job task medium exposure

2.06 (1.98;2.13)

2.14 (2.00;2.27)

6.09 (5.87;6.31)

6.44 (5.88;7.00)

Job task high exposure

2.16 (1.99;2.32)

2.14 (1.82;2.46)

5.78 (5.30;6.26)

6.99 (5.92;8.06)

All

2.04 (1.98;2.09)

2.17 (2.07;2.26)a

5.94 (5.78;6.10)

6.50 (6.12;6.87)a

  1. a) Difference in the fall sample from the spring sample in a longitudinal analysis (p < 0.05).