Over a third of people have experienced unacceptable standards of care in the NHS during the past two years, according to the ITV News Index carried out by ComRes.
They blame a target culture among management and a lack of compassion among NHS staff.
34% said that they, or someone they knew, had experienced poor standards of care in the past two years.
But 58% agreed that, overall, the NHS provides a high standard of care.
Half of voters 'do not trust' PM to see Britain through economic situation
Half (53%) of the British public do not trust the Prime Minister to see the country through the current economic situation, while 31% do trust him and 16% do not know, according to the ITV News Index Poll carried out by ComRes.
Two-thirds (67%) of the population do not trust the Deputy Prime Minister to see the country through the current economic climate, while 15% do trust him and 18% do not know, the poll found.
77 percent of people surveyed in an ITV News/ComRes poll agree that the Government is responsible for causing unnecessary panic over the threatened fuel tanker strike.
Only 12 percent said they think the Government handled the strike threat in a responsible way.
The Prime Minister David Cameron Credit: Alastair Grant/PA Wire
72 percent of people surveyed in an ITV News/ComRes poll disagree that David Cameron was right to advise people to take any "opportunity to top up" their fuel tanks.
57% say deaths of British soldiers in Afghanistan unjustified
More than half of the public (57%) disagree that the deaths of British soldiers in Afghanistan are justified by the cause they are fighting for, rising from 50% last June, a ComRes poll for ITV News found. Now just one in four (26%) agree and 17% say they are not sure.
Over half the UK population think social disorder is worse
The latest ITV Index poll has revealed 55% of the UK population believe that social disorder in some communities in the country have worsened. However, overall crime has decreased by 3%.
46% don't know why British troops are fighting in Afghanistan
Nearly half of the public (46%) have no idea why the UK are in Afghanistan and do not understand why British soldiers are fighting there, up from 39% last June, a ComRes poll for ITV News found.