sick

**Author**: Ross Quinlan
**Source**: [UCI](http://archive.ics.uci.edu/ml/datasets/thyroid+disease)
**Please cite**: Thyroid disease records supplied by the Garavan Institute and J. Ross Quinlan, New South Wales Institute, Syndney, Australia. 1987.

Attribute information:

```
sick, negative. | classes

age: continuous.
sex: M, F.
on thyroxine: f, t.
query on thyroxine: f, t.
on antithyroid medication: f, t.
sick: f, t.
pregnant: f, t.
thyroid surgery: f, t.
I131 treatment: f, t.
query hypothyroid: f, t.
query hyperthyroid: f, t.
lithium: f, t.
goitre: f, t.
tumor: f, t.
hypopituitary: f, t.
psych: f, t.
TSH measured: f, t.
TSH: continuous.
T3 measured: f, t.
T3: continuous.
TT4 measured: f, t.
TT4: continuous.
T4U measured: f, t.
T4U: continuous.
FTI measured: f, t.
FTI: continuous.
TBG measured: f, t.
TBG: continuous.
referral source: WEST, STMW, SVHC, SVI, SVHD, other.
```

```
Num Instances: 3772
Num Attributes: 30
Num Continuous: 7 (Int 1 / Real 6)
Num Discrete: 23
Missing values: 6064 / 5.4%
```

```
name type enum ints real missing distinct (1)
1 'age' Int 0% 100% 0% 1 / 0% 93 / 2% 0%
2 'sex' Enum 96% 0% 0% 150 / 4% 2 / 0% 0%
3 'on thyroxine' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
4 'query on thyroxine' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
5 'on antithyroid medicati Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
6 'sick' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
7 'pregnant' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
8 'thyroid surgery' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
9 'I131 treatment' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
10 'query hypothyroid' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
11 'query hyperthyroid' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
12 'lithium' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
13 'goitre' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
14 'tumor' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
15 'hypopituitary' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
16 'psych' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
17 'TSH measured' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
18 'TSH' Real 0% 11% 79% 369 / 10% 287 / 8% 2%
19 'T3 measured' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
20 'T3' Real 0% 9% 71% 769 / 20% 69 / 2% 0%
21 'TT4 measured' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
22 'TT4' Real 0% 94% 0% 231 / 6% 241 / 6% 1%
23 'T4U measured' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
24 'T4U' Real 0% 2% 87% 387 / 10% 146 / 4% 1%
25 'FTI measured' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
26 'FTI' Real 0% 90% 0% 385 / 10% 234 / 6% 2%
27 'TBG measured' Enum 100% 0% 0% 0 / 0% 1 / 0% 0%
28 'TBG' Real 0% 0% 0% 3772 /100% 0 / 0% 0%
29 'referral source' Enum 100% 0% 0% 0 / 0% 5 / 0% 0%
30 'Class' Enum 100% 0% 0% 0 / 0% 2 / 0% 0%
```