London is the worst-performing region in England for treating hospital patients with dignity and respect, according to the Care Quality Commission inpatient survey.

The 2012 survey released last week saw 65,000 patients nationwide fill in a 70-question form rating different aspects of their care.

One question asked inpatients: “Overall did you feel you were treated with respect and dignity while you were in hospital?”

Nine out of the 20 trusts with the lowest overall scores for this question were in the capital, the data revealed.

Former NHS London chief executive Dame Ruth Carnall, commenting on the finding, said there was “no excuse”, and that the strategic health authority, now abolished, had attempted to address the issue.

Health policy consultant and King’s Fund fellow Nigel Edwards said higher staff turnover at London trusts might be a factor. He also said the larger ethnic minority population in the capital could mean there was a higher chance of trusts getting culturally-sensitive issues wrong.

Of the 20 organisations with the highest scores on the measure, all but eight were specialist trusts.

The 10 with the highest scores were all specialist trusts with The Christie Foundation Trust, in the North West, scoring the highest in England.

The Newcastle upon Tyne Hospitals Foundation Trust was the highest-scoring non-specialist trust. Croydon Health Services Trust was the lowest scoring overall.

Croydon chief executive John Goulston said: “We are all focused on the quality of care patients receive and we are investing in additional nurses as part of a £6.8m programme of planned improvements this year.

“This will help us to deliver high quality patient care and experience and is part of our ongoing commitment to steadily improving our services.”

The information was collected between September 2012 and January 2013.

Overall, the national results showed a year-on-year improvement in the trust inpatients had in nurses.

There was also a significant rise in the proportion of patients satisfied with the length of time they were kept waiting for a planned admission.