- Design
- Systematic review and meta-analysis of longitudinal studies
- Population
- Patients with head and neck cancer in 32 independent studies
- Primary outcome
- Overall survival by pretreatment HRQoL domain
- Effect
- Physical functioning HR 1.16 (95% CI 1.13 to 1.20) per 10-point worsening
A Laryngoscope meta-analysis pooled 32 studies that measured patient-reported quality of life before treatment for head and neck cancer and followed survival. Hazard ratios were standardised to a 10-point worsening on each domain.
Worse global quality of life (HR 1.11, 95% CI 1.08 to 1.14), physical functioning (1.16, 1.13 to 1.20), role functioning (1.09) and social functioning (1.09) were consistently associated with higher mortality and held up when individual studies were removed. Swallowing (1.15) and breathlessness (1.16) were also associated, but those estimates depended on one or a few studies.
These are adjusted associations, not proof that improving quality of life extends life. The practical value is in triage: a short validated questionnaire at diagnosis identifies patients who are more vulnerable and who may need supportive care, prehabilitation or nutritional input before treatment begins.
- Collect a validated quality-of-life questionnaire before treatment for head and neck cancer.
- Poor physical functioning was the most consistent predictor of higher mortality.
- Use low scores to prompt supportive care, dietetic and prehabilitation referral before treatment.
- Do not treat these domains as treatment targets on the basis of this evidence alone.
Why it matters
A questionnaire costing minutes carries prognostic information that staging does not.
Don't overread it
These are associations from observational studies; they do not show that improving quality of life improves survival.
The statistics, in plain English
A hazard ratio of 1.16 per 10 points means each 10-point worse physical functioning score was linked to about 16% higher risk of death at any time point, after adjustment.
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