Table 3 Description of case-control studies published June 1999–2007 where population attributable risk (PAR) for occupational exposures and asthma was either published or could be derived.

26

120

446

Sweden

Adult onset asthma based on diagnosis in medical records

I. Occupations classified as exposed.

I. 25.5%*

II. Self-reported exposure

II. 17.2%*

Mean 21.4%*

27

I. 172

I. 285

France

I. Asthma, any age onset

Occupations at risk, defined a priori by a job-exposure matrix

I. 10.0%*

28

II. 48

II. 228

II. Adult-onset, severe

II. 29.7%*

III. 43

III. Adult-onset, mild

III. 2.7%*^†

II.+III. All adult onset asthma

II+III. 16.9%*

Mean 13.5%*

29

373

4,329

Australia

Adult-onset physician-diagnosed asthma

Occupations or exposures a priori classified as having an increased risk

9.5%‡