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. Author manuscript; available in PMC: 2014 Aug 2.
Published in final edited form as: Am J Ind Med. 2004 Jul;46(1):63–70. doi: 10.1002/ajim.20034

TABLE II.

Training Conducted by Students Before and After Training; ICWUC Chemical Workers (n = 55)

Training measure Pre Post Ratio post/pre P-value
Number who conducted training 8 (15%) 27 (49%) 3.4 <0.0001a
Mean number trained per respondent 1.7 8.7 5.1 0.01b
Mean hours trained per training 0.3 3.5 11.7 0.0024b
a

Contingency analysis: Likelihood ratio probability > chi-square.

b

Matched pairs: Probability > t.