marginally statistically significantp = 0.062
There was an overall reduction over the surveillance period (18.4%) that was marginally statistically significant ( p = 0.062).
There was an overall reduction over the surveillance period (18.4%) that was marginally statistically significant ( p = 0.062).
There was a significant downward trend in incidence over the four-year surveillance period (18.7% decrease; p = 0.002), with a statistically significant reduction in the 500–999 g group (16.5% reduction) and marginal significance in the highest weight group (20.5% reduction).