Reanalysis of updated mortality among vinyl and polyvinyl chloride workers: Confirmation of historical evidence and new findings

Table 2 Number of workers, mean age at hiring and standard deviation (SD), person-years (PY) by age class for each group of workers

	Technicians and clerks¹	Autoclave workers	PVC Baggers	PVC Compound workers	Other blue collar workers	Total blue collar workforce²	Total
Number of workers	202	210	198	404	644	1456	1658
Mean age at hire (SD)	27.4 (7.1)	26.1 (5.2)	31.7 (7.5)	29.5 (7.3)	29.5 (8.2)	29.3 (7.6)	29.1 (7.6)
PY age <30	266	325	79	333	897	1634	1900
PY age 30–44	2025	2298	1237	3388	5938	12861	14886
PY age 45–59	2283	2312	2483	4879	6966	16640	18923
PY age >59	729	511	1179	1710	2415	5815	6544
Total PY	5303	5446	4978	10310	16216	36950	42253

¹ Reference group
²Total blue collar workforce = Autoclave workers + PVC Compound workers + PVC Baggers + Other blue collar workers.

ISSN: 1471-2458