Table 3

Decompression illness and government intervention

Before intervention After intervention
Cases of decompression illness166
Proportion diving when unwell13/163-150 2/63-150
Delay in presentation (days)63 (71)3-151 18 (22)3-151
  • 3-150 p=0.036;

  • 3-151 p=0.144, before v after intervention.

  • Incidents of decompression illness, the number of divers continuing to dive when unwell, and the delay to presentation before and after the beginning of the government intervention strategy in February 1995. Proportion of divers diving when unwell (V 2 test, two tailed p value). Mean (SD) days to presentation (paired ttest, two tailed p values).