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 exposureNon-reversing sequelae of OP poisoning
Neurobehavioural testsPresent 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⇓*ndndndnd⇓*
Visuomotor speed
    Digit Symbol⇓*⇓*nd⇓*⇓*⇓*
    Trailmaking B⇓*nd⇓*ndnd⇓*
    Trailmaking A⇓*ndndnd⇓*nd
Problem solving
    Block Design⇓*ndndnd⇓*⇓
Attention
    PASAT⇓ndndndndnd
    Letter Cancel⇓*ndndndndnd
Memory
    Digit Span⇓*ndndnd⇓*⇓*
    BVRT⇓*ndndnd⇓*nd
    Story Recall A⇓ndndndndnd
    Story Recall B⇓ndndndndnd