Smoking

Attributes relating to smoking are lucidly stated in the Table 1. Details about particular attributes are in the Tables 2–4.

Table 1: Attributes relating to smoking

Identifier – column in the data matrix Entry	Meaning
KOURENI	intensity of smoking
DOBAKOUR	how low he has been smoking
BYVKURAK	how long an ex-smoker has not been smoking

Table 2: Frequency of the KOURENI attribute values

SMOKING		Number of patients
Code	Meaning
1	non-smoker	383
2	smoker of cigarettes: 1–4 cig./day	45
3	smoker of cigarettes: 5–14 cig./day	206
4	smoker of cigarettes: 15–20 cig./day	391
5	smoker of cigarettes: 21 and more cig./day	346
6	smoker of cigars or pipes	29
13	not stated	17

Diagrams: bar, pie.

Table 3: Frequency of the DOBAKOUR attribute values

DOBAKOUR – duration of smoking		Number of patients
Code	Meaning
7	up to 5 years	28
8	6–10 years	49
9	11–20 years	310
10	21 and more years	647
	empty entry in the data matrix	383

Diagrams: bar, pie.

Table 4: Frequency of the BYVKURAK attribute values

BYVKURAK – ex-smoker		Number of patients
Code	Meaning
11	He has not been smoking for less than 1 year	35
12	He has not been smoking for more than 1 year	196
	Empty entry in the data matrix = current smoker or non-smoker	1 186

Diagrams: bar, pie.