Distribution of workers by sex, alachlor exposure status, and follow up status
| Group | Men | Women | Total |
|---|---|---|---|
| Mortality study | |||
| Total workforce | 1091 | 300 | 1391 |
| No alachlor exposure (excluded) | 125 | 60 | 185 |
| Alachlor exposed | 966 | 240 | 1206 |
| Alive | 920 | 227 | 1147 |
| Dead | 42 | 6 | 48 |
| Lost to follow up | 4 | 7 | 11 |
| Incidence study | |||
| Mortality cohort | 966 | 240 | 1206 |
| Non-whites (excluded) | 32 | 12 | 44 |
| Left Iowa before 1969 (excluded) | 4 | 1 | 5 |
| Never lived in Iowa (excluded) | 4 | 0 | 4 |
| Incidence sub-cohort | 926 | 227 | 1153 |
| In Iowa through study end or death date | 629 | 157 | 786 |
| Left Iowa, date known | 274 | 60 | 334 |
| Incomplete residence history | 23 | 10 | 33 |
| Incident cancers | 29 | 7 | 36 |