Table 7
Comparison of neurobehavioural tests in primary studies of occupational long term exposure to OP pesticides and non-reversing sequelae to OP poisoning
| Occupational long term exposure | Non-reversing sequelae of OP poisoning | |||||
|---|---|---|---|---|---|---|
| Neurobehavioural tests | Present study (2001) (n=52) | Stephens et al (1995) (n=146) | Korsak and Sato (1977) (n=32) | Steenland et al (1994) (n=128) | Rosenstock et al (1991) (n=36) | Savage et al (1988) (n=100) |
| ⇓=worse performance. | ||||||
| *p<0.05. | ||||||
| nd, no data; test not administered. | ||||||
| Verbal abstraction | ||||||
| Similarities | ⇓* | nd | nd | nd | nd | ⇓* |
| Visuomotor speed | ||||||
| Digit Symbol | ⇓* | ⇓* | nd | ⇓* | ⇓* | ⇓* |
| Trailmaking B | ⇓* | nd | ⇓* | nd | nd | ⇓* |
| Trailmaking A | ⇓* | nd | nd | nd | ⇓* | nd |
| Problem solving | ||||||
| Block Design | ⇓* | nd | nd | nd | ⇓* | ⇓ |
| Attention | ||||||
| PASAT | ⇓ | nd | nd | nd | nd | nd |
| Letter Cancel | ⇓* | nd | nd | nd | nd | nd |
| Memory | ||||||
| Digit Span | ⇓* | nd | nd | nd | ⇓* | ⇓* |
| BVRT | ⇓* | nd | nd | nd | ⇓* | nd |
| Story Recall A | ⇓ | nd | nd | nd | nd | nd |
| Story Recall B | ⇓ | nd | nd | nd | nd | nd |
