Clinical Psychology

The standing claim

The best-evidenced lever in this domain is whether psychological care is built into physical-illness pathways rather than bolted on: collaborative, stepped care improves depression and, modestly, physical illness burden in randomised trials. The time between psychological need and effective therapeutic contact is the second lever we track, but it is a hypothesis grounded in access standards and stepped-care logic, not a measured effect: we have found no study isolating delay as a predictor of outcome. Psychological suffering is the part of the encounter the biomedical record is least able to see — and the part most likely to determine whether treatment is sustained and whether a life feels worth living.

Where practice stands

England has, in NHS Talking Therapies (formerly IAPT), a genuinely world-leading achievement on one axis: measured access at scale. The service measures outcomes session by session for everyone it treats, publishes them nationally, and works to firm access standards: ≥75% to first treatment within 6 weeks, ≥95% within 18 weeks. But two gaps matter for this domain. First, recovery is held to a 50% expected standard, and the published figures sit close to it rather than comfortably above it. Second, there is no distinct standard for older adults or for people with long-term physical conditions — precisely the groups this publication tracks. How much clinical psychology sits inside acute and older-people’s services is itself poorly measured: the national psychological professions census describes the workforce as a whole, and we have not been able to verify a figure for acute hospital settings. That absence is part of the finding. The need is whole-person; the provision, as far as anyone can show, is rarely embedded where physical illness is treated.

What good looks like

“Good” is stepped, integrated, measurement-based care — and the outcome evidence for it is strong. According to PubMed, the IMPACT trial (Unützer et al., 2002 — RCT, n=1,801, age ≥60) found collaborative care for late-life depression roughly doubled response: 45% achieved ≥50% symptom reduction at 12 months vs 19% with usual care (OR 3.45, 95% CI 2.71–4.38), with better function and quality of life. A meta-analysis of 20 RCTs (n=4,774) found collaborative care improves not only depression but physical illness burden (OR 1.64, 95% CI 1.47–1.83), a small effect (d = 0.27) but a consistent one: the mind-body integration is not rhetorical (van Eck van der Sluijs et al., 2017). NICE recommends exactly this model — collaborative, stepped care for depression with a chronic physical health problem (CG91; NG222) — and structured psychosocial intervention (e.g. cognitive stimulation therapy) in dementia (NG97); these are authoritative recommendations, not statutory mandates.

The exemplar is chosen on outcomes and transferability, not reputation — and it does not need importing. The collaborative-care model has already been delivered inside NHS primary care, in the COINCIDE trial across 36 general practices in North West England: low-intensity psychological treatment from Talking Therapies psychological wellbeing practitioners alongside practice nurses, for people with depression and diabetes or heart disease. Modelled over 24 months from the trial, it cost an estimated £16,123 per QALY gained, below the threshold English decision-makers use, but with wide uncertainty: the chance it is cost-effective at £20,000 per QALY is 0.54, close to even (Camacho et al., 2016). So the model with the best evidence has NHS-native proof of feasibility; its value for money is promising, not proven. NHS Talking Therapies is the international exemplar for measured access; collaborative care is the exemplar for integrated provision in physical illness and older age — and the distance between the two is the work.

Through the lenses

The measure is use value — does the person feel more capable, less frightened, more themselves — not the count of contacts. This is the illness vs disease distinction (Kleinman) and McGilchrist’s whole-person attention made operational: the psychological dimension is the living context the record omits. The VAT levers are right-sizing the intervention to the need, which the trials support, and time-to-effective-contact, which they have not yet tested. Cross-domain, psychological capacity shapes outcomes in every other domain — delirium and distress in acute frailty (D01), the emotional labour of rehabilitation (D04), and existential distress in the last year of life (D03).

Confidence and limits

IMPACT is high-quality RCT evidence but from US primary care; its transferability is supported by COINCIDE within the NHS, whose cost-effectiveness estimate is modelled and uncertain. The Talking Therapies access figures are firm operational standards; the recovery figures are expected outcome standards, not statutes. One honest gap: we did not find a clean primary study isolating referral-to-treatment delay as a predictor of psychology outcomes — so the case for speed rests on the access standards and the stepped-care rationale, not a specific effect size. The thinnest, least-measured part of the system is exactly the part this domain cares about most: psychology embedded in physical-health and older-people’s settings.

What we are watching

Whether NHS Talking Therapies sets explicit standards for older adults and long-term-conditions provision; the acute-hospital psychology workforce (size and funding stability); and whether collaborative care is commissioned at scale into physical-illness pathways rather than piloted and withdrawn.