| Country | Departments | Inhalable dust | CSF time |
| time trend (95 CI) | trend (95 CI) | ||
| Overall | −4.3* | −3.3† | |
| Netherlands | Crude materials, mixing and milling | −3.8 (−7.1 to −0.4) | +3.1 (−0.8 to 7.1) |
| Pre-treating | −0.3 (−3.0 to 2.5) | −2.0 (−4.7 to 0.7) | |
| Curing | −4.8 (−7.7 to −1.7) | −8.6 (−11.4 to −5.7) | |
| Post-treating | −1.9 (−4.8 to 1.1) | −2.4 (−5.5 to 0.8) | |
| Maintenance/engineering | −6.5 (−10.9 to −1.8) | −5.4 (−9.6 to −1.0) | |
| Miscellaneous workers | −5.3 (−9.6 to −0.7) | −2.9 (−1.7 to 7.8) | |
| Germany | Crude materials, mixing and milling | −6.8 (−9.1 to −4.3) | − |
| Pre-treating | −4.1 (−8.5 to 0.5) | − | |
| Curing | −2.9 (−8.6 to 3.1) | − | |
| Post-treating | −5.8 (−13.9 to 3.2) | − | |
| Maintenance/engineering | +4.8 (−10.0 to 22.0) | − | |
| Miscellaneous workers | −9.6 (−17.3 to −1.2) | − | |
| United Kingdom | Crude materials, mixing and milling | −3.9 (−5.2 to −2.7) | −4.5 (−6.2 to −2.8) |
| Pre-treating | −0.4 (1.5 to 2.3) | −1.6 (−3.6 to 0.5) | |
| Curing | −2.1 (−3.8 to −0.3) | −2.0 (−3.8 to −0.3) | |
| Post-treating | −1.3 (−3.9 to 1.3) | −2.5 (−5.1 to 0.2) | |
| Maintenance/engineering | −3.3 (−17.7 to 13.7) | −9.6 (−23.7 to 7.1) | |
| Miscellaneous workers | −6.3 (−10.6 to −1.9) | −4.1 (−9.9 to 2.2) | |
| Poland | Crude materials, mixing and milling | −5.8 (−6.3 to −5.4) | (−45.4) (597.7 to −26.1) |
| Pre-treating | −4.0 (−4.5 to −3.4) | (−68.6) (−84.7 to −35.8) | |
| Curing | −6.8 (−16.4 to 4.0) | (+23.2) (−69.4 to 396.6) | |
| Post-treating | −4.3 (−7.1 to −1.4) | (0) | |
| Maintenance/engineering | −8.2 (−9.6 to −6.7) | − | |
| Miscellaneous workers | −67.2‡ (−88.2 to −8.8) | (0) | |
| Sweden | Crude materials, mixing and milling | −5.0 (−6.3 to −3.7) | − |
| Pre-treating | −8.5 (−10.5 to −6.5) | − | |
| Curing | +2.3 (−6.0 to 11.3) | +0.4 (−12.8 to 15.6) | |
| Post-treating | +42.3§ (29.5 to 56.4) | − | |
| Maintenance/engineering | +2.0¶ (−3.5 to 7.9) | − | |
| Miscellaneous workers | −10.9 (−14.1 to −7.6) | − | |
*Unweighted average, not taking into account miscellaneous workers in Poland and maintenance and engineering in Sweden; †unweighted average; ‡n 7 (1986–1988); §n 13; ¶n 16; ( ): data from an intervention study in 1987 and 1988.