Children's DLQI (cDLQI) — Dermatology Life Quality Index for Pediatric Patients
Children's Dermatology Life Quality Index · Also known as: cDLQI, Pediatric DLQI
The Children's Dermatology Life Quality Index (cDLQI) is a pediatric-adapted version of the adult DLQI, measuring the impact of skin disease on quality of life in children and adolescents aged 4–16 years. Developed by Lewis-Jones and Finlay in 1995, it uses child-friendly language and addresses domains relevant to childhood (school, leisure, friendships, clothing) rather than work and adult relationships. cDLQI is the standard quality-of-life measure in pediatric dermatology trials and clinical practice.
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When to use it
cDLQI is indicated in all pediatric dermatology settings, from primary care to specialist centers, for any child with a skin disease affecting quality of life. It is essential in pediatric clinical trials of dermatological treatments to demonstrate not only clinical efficacy but improvement in childhood-relevant quality-of-life domains. cDLQI should be assessed at baseline, 8–12 weeks, and final visit minimum. Periodic assessment (every 4–6 weeks) in clinical practice identifies children at high risk of anxiety, depression, or social isolation due to skin disease and guides psychosocial support or escalation of therapy. cDLQI is particularly valuable in psychologically burdening conditions (acne, alopecia, vitiligo, severe atopic dermatitis) affecting adolescents.
Strengths & limitations
- Pediatric-specific language and domains; items address childhood-relevant concerns (school, friends, play) rather than work or adult relationships.
- Validated for children aged 4–16 years; applicable across a broad developmental range with consistent psychometric performance.
- Brief and simple; 10 items take 3–5 minutes to complete; low respondent burden.
- Proven responsiveness to treatment; sensitive to clinically meaningful change with topical, phototherapy, and systemic treatments.
- Proxy and self-report options; parents can complete for younger children; older children can self-report.
- Widely translated; available in 30+ languages.
- Endorsed by pediatric dermatology societies and regulatory agencies (FDA, EMA).
- Strong psychometric properties: internal consistency, test-retest reliability, construct validity across diverse pediatric populations.
- Proxy vs. self-report discrepancy; parents may over- or underestimate a child's quality-of-life burden relative to the child's own perception, particularly in adolescents.
- Age-related interpretation variability; psychometric performance may differ in younger (4–7 years) vs. older children (10–16 years); developmental differences in understanding and response style.
- No proxy version for adults; parents of children >16 years must transition to adult DLQI, and there is no validated bridging instrument.
- Subjective recall; children's memory of quality-of-life impact over the past week may be influenced by recent events or current mood.
- Does not capture objective disease severity; a child with severe eczema but high resilience may score lower than a child with mild disease and poor coping.
- School-specific items may not apply to all children (e.g., homeschooled or non-school-attending children).
- Ceiling effects possible in very mild disease; children with minimal QoL impact may score near zero.
Frequently asked
Should I use parent report or child self-report for cDLQI?
For children aged 4–7 years, parental proxy completion is typically necessary. For children aged 8–16 years, child self-report is preferred when feasible and the child can read and understand the items. However, both perspectives are valuable: parents assess functional impact (school attendance, family activities); children assess emotional impact (embarrassment, anxiety). Consider administering both and comparing; discrepancies are informative.
What is the MCID for cDLQI?
The minimal clinically important difference (MCID) for cDLQI is ≥4 points; a reduction of ≥4 from baseline indicates meaningful improvement. In clinical practice, improvement from 'moderate' (7–12) to 'small' (2–6) impact category is considered clinically significant.
How does cDLQI differ from adult DLQI?
cDLQI has 10 items and uses simpler language; adult DLQI has 10 items but with different wording focused on adult domains (work, intimate relationships). cDLQI items address school, play, and friendships; DLQI addresses occupational and adult relationship impacts. Use cDLQI for children ≤16 years; transition to DLQI for older adolescents (≥17 years).
Should cDLQI be combined with objective severity measures like SCORAD or EASI?
Yes. cDLQI measures quality-of-life impact; objective measures (SCORAD, EASI, PASI) measure clinical severity. They do not correlate perfectly; a child may have mild clinical disease but high QoL burden due to anxiety or social concerns. Use both in trials and clinical monitoring for a complete picture.
How should I handle disagreement between parent and child cDLQI scores?
Discrepancies are common and clinically meaningful. Parents may overestimate QoL burden or focus on visible disease; children may underestimate due to coping or denial. Discuss the discrepancy with the family: ask the child what aspects of skin disease bother them most, and ask the parent what functional changes they observe. Both perspectives inform treatment planning.
Sources
- Lewis-Jones MS, Finlay AY. The Children's Dermatology Life Quality Index (cDLQI): initial validation and practical use. Br J Dermatol. 1995;132(6):942-949. DOI: 10.1111/j.1365-2133.1995.tb16953.x ↗
- Finlay AY. Quality of life measurement in dermatology: a practical approach. Br J Dermatol. 1997;136(3):305-314. link ↗
How to cite this page
ScholarGate. (2026, June 3). Children's Dermatology Life Quality Index. ScholarGate. https://scholargate.app/en/dermatology/dermatology-life-quality-index-children
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