Cardiff Acne Disability Index (CADI)

Background information

The Cardiff Acne Disability Index (CADI) (Motley and Finlay, 1992) is a short 5 item questionnaire derived from the longer Acne Disability Index (Motley and Finlay, 1989).

The Cardiff Acne Disability Index is designed for use in teenagers and young adults with acne. It is self explanatory and can be simply handed to the patient who is asked to complete it without the need for detailed explanation. It is usually completed in one minute.

The Cardiff Acne Disability Index

Click here to download Microsoft Word version

1. As a result of having acne, during the last month have you been aggressive, frustrated or embarrassed?

(a) Very much indeed
(b) A lot
(c) A little
(d) Not at all

2. Do you think that having acne during the last month interfered with your daily social life, social events or relationships with members of the opposite sex?

(a) Severely, affecting all activities
(b) Moderately, in most activities
(c) Occasionally or in only some activities
(d) Not at all

3. During the last month have you avoided public changing facilities or wearing swimming costumes because of your acne?

(a) All of the time
(b) Most of the time
(c) Occasionally
(d) Not at all

4. How would you describe your feelings about the appearance of your skin over the last month?

(a) Very depressed and miserable
(b) Usually concerned
(c) Occasionally concerned
(d) Not bothered

5. Please indicate how bad you think your acne is now:

(a) The worst it could possibly be
(b) A major problem
(c) A minor problem
(d) Not a problem

Instructions for scoring

The scoring of each answer is as follows:

(a) 3
(b) 2
(c) 1
(d) 0

The CADI score is calculated by summing the score of each question resulting in a possible maximum of 15 and a minimum of 0. The higher the score, the more the quality of life is impaired.


The CADI is available to download in the following languages:

Cantonese - Microsoft Word version (Translation Info)
French - Microsoft Word version
Persian - Microsoft Word version
Ukranian - Microsoft Word version (Translation Info)


There is no charge for the use of the Cardiff Acne Disability Index

Further information

Please contact:

Professor A Y Finlay
Tel: +44 29 2074 4721

Original publication

Motley RJ, Finlay AY. Practical use of a disability index in the routine management of acne. Clinical and Experimental Dermatology 1992; 17: 1-3.

Other publications

1.             Motley RJ, Finlay AY.  How much disability is caused by acne?  Clin Exp Dermatol, 1989; 14: 194-198.

2.        Lim C-CL, Tan T-C.  Personality, disability and acne in college students Clin & Exp Dermatol 1991; 16: 371-373.

3.        Motley RJ, Finlay AY. Practical use of a disability index in the routine management of acne. Clin Exp Dermatol, 1992; 17: 1-3.

4.        Salek MS, Khan GK, Finlay AY.  Questionnaire techniques in assessing acne handicap: reliability and validity study.  Quality of Life Research, 1996; 5: 131-138

5.        Oakley A M M.  The Acne Disability Index:  usefulness confirmed.  Australasian J Dermatol 1996; 37: 37-39.

6.        Kilkenny M, Merlin K, Plunkett A, Marks R.  The prevalence of common skin conditions in Australian school students:  3. acne vulgaris.  Br J Dermatol  1998; 139(5): 840-845.

7.        Marks R, Plunkett A, Merlin K, Jenner N.  Atlas of Common Skin Diseases in Australia.  University of Melbourne, Melbourne 2000:  p9, 15, 19.

8.        Aquilina S, Galea L, Scerri L, Azzopardi L, Serracino Inglott A.  Assessment of the quality of life in patients with acne. JEADV 2003; 17 (Suppl 3):  56.

9.        Finlay A Y, Dreno B, Nocera T, Verriere F, Myon E, Taieb C. The French version of the Cardiff Acne Disability Index.  JEADV 2003; 17 (Suppl 3):  62.

10.     Dreno B.  Effect of Dianéal® in the prevention of acne scarring and pigmentation:  a double blind study including quality of life evaluation.  JEADV  2003; 17 (Suppl 3):  431.

11.     Dreno B, Finlay A Y, Nocera T et alCADI cultural and linguist validation into French of an acne disability index.  Dermatology 2004; 208: 104-108.

12.     Scherdin U, Treder-Conrad C, Berger B, Micic S, Rippke F.  Medical skin care significantly improves quality of life in subjects with mild ACNE vulgaris.  JADV 2004; 18 (Suppl 2) 202.

13.     Aghaei S, Mazharinia N, Jafari P, Abbasfard Z.  The Persian version of the Cardiff Acne Disability Index (CADI):  reliability and validity study.  Saudi Med j 2006; 27(1): 80-82.

14.      Walker N, Lewis-Jones M S.  Quality of life and acne in Scottish adolescent schoolchildren: use of the Children’s Dermatology Life Quality Index  (CDLQI) and the Cardiff Acne Disability Index (CADI).  J Eur Acad Dermatol Venereol 2006; 20: 45-50.

15.      Pawin H, Chivot M, Beylot C, Faure M, Poli F, Revuz J, Dréno B.  Living with acne.  Dermatology 2007; 215: 3080314.

16.     Clayton C H, Clark S M, Britton J, Pavol S, Radeve S.  A comparative study of the Children’s Dermatology Life Quality Index (CDLQI) in paediatric dermatology clinics in the UK and Bulgaria.  JEADV 2007; 21: 1413-1450.