In the survey, 96% of 72 trusts said health in their local area had declined, with over half (51%) saying there was a lack of funding for initiatives that would reduce health inequalities.
Saffron Cordery, deputy chief executive said: ‘Our survey lays bare the significant challenges NHS trusts face when tackling health inequalities.
‘Ensuring healthcare is equitable to all is not just a moral obligation for the NHS but a legal one, too.
‘Trust leaders are working hard to ensure this but are thwarted by stubborn funding barriers and the rising costs of housing, energy, and food, which continually push people into poverty and associated ill health.'
Cordery said trusts needed ‘protected, long-term funding for specific health inequalities initiatives' to close the health inequity gap.
She said a ‘whole government approach' addressing the wider determinants of health, including investment in transport, education and housing, was needed.
The deputy chief executive said fully funding the NHS Long Term Workforce Plan would also ensure adequate staffing was available to meet patients' needs.
‘We are at a critical juncture,' Cordery said. ‘Decisions made by the next government will have lasting implications for health equity in England. It's time to move beyond quick fixes to create a sustainable, equitable health and care system for all.'