| Normal FT3 (n. 32) Mean (St. Dev.) | Low FT3 (n. 29) Mean (St. Dev.) | Very low FT3 (n. 13) Mean (St. Dev.) | Total (n. 74) Mean (St. Dev.) |
---|---|---|---|---|
Sex (F/M) | 17/15 | 14/15 | 7/6 | 38/36 |
Age (years), mean (st. dev.) | 63.5 (± 13.8) | 65.4 (± 13.7) | 65.1 (± 10.1) | 64.5 (± 13.1) |
BMI, mean (st. dev.) | 29.5 (± 7.5) | 27.1 (± 4.2) | 31.4 (± 7.6) | 28.9 (± 6.6) |
FT3 (pg/ml), mean (st. dev.) | 2.2 (± 0.4) | 1.5 (± 0.1) | 1.0 (± 0.0) | 1.7 (± 0.6) |
FT4 (ng/dl), mean (st. dev.) | 1.0 (± 0.2) | 1.0 (± 0.2) | 0.9 (± 0.2) | 1.0 (± 0.2) |
TSH (μIU/ml), mean (st. dev.) | 1.4 (± 1.3) | 0.8 (± 0.9) | 0.6 (± 0.8) | 1.0 (± 1.1) |
Comorbidity (at least one) n. (%) | 26 (81.3) | 24 (82.7) | 13 (100) | 63 (85.1) |
Hypertension, n. (%) | 23 (71.9) | 17 (58.6) | 11 (84.6) | 51 (68.9) |
Diabetes, n. (%) | 15 (46.9) | 8 (27.6) | 6 (46.2) | 29 (39.2) |
Obesity, n. (%) | 9 (28.1) | 4 (13.8) | 5 (38.5) | 18 (24.3) |
Malignancy, n. (%) | 2 (6.3) | 6 (20.7) | 8 (19) | 16 (21.6) |
Ischemic heart disease, n. (%) | 8 (25.0) | 5 (17.2) | 1 (7.7) | 14 (18.9) |
Arrhythmogenic cardiac diseases, n. (%) | 1 (3.1) | 2 (6.9) | 1 (7.7) | 4 (5.4) |
Autoimmune disease, n. (%) | 2 (6.3) | 2 (6.9) | 0 (0) | 4 (5.4) |
Chronic obstructive pulmonary disease, n. (%) | 2 (6.3) | 1 (3.4) | 0 (0) | 3 (4.0) |
Psychiatric disease, n. (%) | 1 (3.1) | 1 (3.4) | 1 (7.7) | 3 (4.0) |