Health determiners. Absolute figures
Average age of smoke use initiation of ex-smokers by sex and social class based on the occupation of the reference person. Average and Standard deviation. Population aged 15 years old and over that does not currently smoke but did smoke before.
Units: average and standard deviation

	Average	Standard deviation	
BOTH SEXES	
    Total	17.03	3.97	
    I	17.26	3.19	
    II	17.58	4.01	
    III	17.27	3.94	
    IV	16.76	3.98	
    V	16.84	4.28	
    VI	16.86	3.95	
    No data recorded	16.63	3.72	
MALES	
    Total	16.61	3.48	
    I	17.24	3.28	
    II	17.11	3.39	
    III	16.94	3.43	
    IV	16.22	3.15	
    V	16.38	3.70	
    VI	16.41	3.37	
    No data recorded	.	.	
FEMALES	
    Total	17.85	4.69	
    I	17.31	3.04	
    II	18.14	4.58	
    III	17.69	4.48	
    IV	18.22	5.38	
    V	18.13	5.39	
    VI	17.81	4.83	
    No data recorded	17.02	3.22	
Notes:

.Data protected by statistical secrecy

1) Socio-economic levels classification of the Spanish Society of Epidemiology:
 I. Directors and managers of establishments with 10 or more wage earners and professionals traditionally associated with university degrees
 II. Directors and managers of establishments with 10 or more wage earners, professionals traditionally associated with university degrees and other technical support professionals
 III. Intermediate occupations and self-employed workers
 IV. Supervisors and workers in skilled technical occupations 
 IV. Skilled primary sector workers and other semi-skilled workers
 VI. Non-skilled workers
The symbol '.' shall be deemed as data which cannot be given due to an insufficient sample.
 The data corresponding to cells with fewer than 35 thousand persons must be considered with caution,  as they may be affected by a high degree of sampling error.
Source: Ministry of Public Health, Social Services and Equality and INE