Factor | T3 quartile | ||||
---|---|---|---|---|---|
 | 1 | 2 | 3 | 4 | All |
 | N = 494 | N = 704 | N = 456 | N = 531 | N = 2,185 |
 | Column percent (T3 levels in italics) | ||||
T3 (mIU/l) | <1.50 | 1.60 to 1.80 | 1.90 to 2.00 | 2.1 to -4.30 | Â |
Age | Â | Â | Â | Â | Â |
   <50 | 62.1 | 46.6 | 26.1 | 21.5 | 39.7 |
   >50 | 37.9 | 53.4 | 73.9 | 78.5 | 60.3 |
Premenstrual | 60.3 | 44.2 | 28.7 | 23.2 | 39.5 |
Peri/postmenopausal | 39.7 | 55.8 | 71.3 | 76.8 | 60.5 |
HRT in peri/postmenopausal | 13.3 | 14.2 | 15.4 | 17.6 | 15.4 |
   missing | - | - | 0.3 | - | 0.1 |
Nulliparity | 18.2 | 17.0 | 13.2 | 19.6 | 17.1 |
   missing | - | - | 0.4 | 0.8 | 0.3 |
OC-use | 4.7 | 6.0 | 9.0 | 11.5 | 7.6 |
   missing | - | - | 0.7 | 0.9 | 0.4 |
Menarche <12 years | 15.2 | 13.4 | 9.6 | 11.9 | 12.6 |
   missing | - | 0.4 | 1.3 | 1.3 | 0.7 |
Smoking | Â | Â | Â | Â | Â |
   never | 43.5 | 47.7 | 47.6 | 47.1 | 46.6 |
   current | 35.8 | 33.2 | 34.0 | 33.1 | 34.0 |
   ex | 20.6 | 19.0 | 18.0 | 18.8 | 19.1 |
   missing | - | - | 0.4 | 0.9 | 0.3 |
Alcohol consumption | Â | Â | Â | Â | Â |
   nothing | 14.2 | 14.1 | 13.2 | 19.0 | 15.1 |
   less than every week | 55.3 | 60.7 | 62.5 | 60.1 | 59.7 |
   every week | 30.6 | 25.1 | 23.9 | 19.4 | 24.7 |
   missing | - | 0.1 | 0.4 | 1.5 | 0.5 |
BMI | Â | Â | Â | Â | Â |
   <20 | 14.8 | 10.1 | 7.9 | 7.5 | 10.1 |
   ≥20 <25 | 62.3 | 56.1 | 53.9 | 46.5 | 54.7 |
   ≥25 <30 | 17.0 | 26.1 | 27.9 | 30.5 | 25.5 |
   ≥30 | 5.9 | 7.7 | 10.3 | 15.4 | 9.7 |
Height | Â | Â | Â | Â | Â |
   ≤ 160 | 24.1 | 28.8 | 28.9 | 36.5 | 29.7 |
   >160 ≤ 165 | 32.6 | 33.2 | 30.9 | 30.7 | 32.0 |
   >165 ≤ 170 | 26.7 | 24.9 | 25.0 | 22.0 | 24.6 |
   >170 | 16.6 | 13.1 | 15.1 | 10.7 | 13.7 |
Education | Â | Â | Â | Â | Â |
   <12 years | 53.0 | 53.6 | 62.5 | 64.2 | 57.9 |
   12 years | 20.9 | 27.4 | 22.1 | 21.8 | 23.5 |
   >12 years | 21.7 | 14.9 | 11.2 | 10.7 | 14.5 |
   Missing | 4.5 | 4.1 | 4.2 | 3.2 | 4.0 |
Married | 54.9 | 54.4 | 51.3 | 50.3 | 52.9 |
   missing | 0.8 | 1.8 | 7.2 | 14.5 | 5.8 |