Unsurprisingly, recruitment and retention rates in the most deprived parts of the country are well below those of the more affluent. Under normal market conditions, this would be reflected in the pay and conditions: tougher work would be better rewarded. In this country, we hope that our public sector ethos will somehow make up the difference, that there will be enough local heroes willing to undertake more demanding jobs for no extra remuneration. The evidence shows that such hope is as forlorn in reality as it sounds in theory.
And this insightful table:
I recommend the entire article.