a positive trendP =0.03
However, West Midlands had a positive trend, increasing from 47% in the first time period to 69% in the last time period, at a rate significantly different from the rest of England ( P =0.03).
However, West Midlands had a positive trend, increasing from 47% in the first time period to 69% in the last time period, at a rate significantly different from the rest of England ( P =0.03).
Geographical variability was marginally significant for NHL ( P =0.045) ( Table 1 ).