Table 2.

Phenomenology: HRQOLISP-E items compared with HADS-D and the ICD 10 conceptual framework for depression.

ICD 10 (model) of depression	HRQOLISP-Ea	HADS-D
Core symptoms of depression
1.Depressed mood (sadness, emptiness, hopelessness, tearfulness, Irritability) 2.Loss of interest or pleasure	1.Often/always have negative feelings (Blue mood, anger, despair, anxiety, depression, fear) 2.Seldom or never able to laugh 3.Seldom or never enjoy work 4.Seldom or never Enjoy pleasure	1.Not quite able to laugh and see the funny side of things as much as I always could 2.Not often/at all feel cheerful 3.I still hardly/only a little enjoy the things I used to enjoy 4.I hardly/definitely less than before look forward to enjoyment 5.I can very seldom/not often enjoy a book, radio or TV
3.Decreased energy or easily fatigued	5.Seldom or never Have enough energy for everyday life	–
Other symptoms of depression
4.Reduced self-esteem and self-confidence	6.Seldom or never Able to accept bodily appearance	6.I have lost interest in my appearance
5.Ideas of guilt and unworthiness
6.Bleak pessimistic view of the future	–	–
Many somatic/biological symptoms of depression also listed	N/A	N/A
Two core symptoms + two others = major depression	Any four = depression	Any four = depression

Total variance explained = 67.9, Factor loadings (0.82–0.92), the question ‘How often do you have negative feelings?’ in the original HRQOLISP-E is excluded from the HRQOLISP-E because of low factor loading = 0.31.

^aEigenvalue = 4.8,