Technology against elderly isolation: what the evidence shows

Every few months a new device appears for loneliness in older people. A robot, a wristband, a simplified tablet, a voice assistant. The pitch is almost always the same, and almost always made without citing anything. The literature exists, it is larger than it looks, and it is a good deal less enthusiastic.

Twenty-one reviews, almost eighty thousand people

The broadest synthesis published to date is an umbrella review by Eric Balki, Niall Hayes and Carol Holland, in JMIR Aging in 2022. It pooled 21 systematic reviews which between them covered 326 primary studies and 79,538 participants. Of the 18 reviews that measured loneliness, 15 found positive effects and 3 found none or negative ones.

That is a favourable result, and the authors are the first to qualify it: the evidence is low quality on the GRADE scale, and study designs vary too much to add up with confidence. Writing "technology reduces loneliness" on this basis goes further than the data allow.

And then there is the meta-analysis

Narrow the criterion to randomised trials and pool the effects, and the picture changes. Wenwen Jin and colleagues, in Frontiers in Psychology in 2021, combined six trials with 391 participants and found no difference: a standardised mean difference of -0.08, with a 95% confidence interval from -0.33 to 0.17. Zero sits comfortably inside the interval.

The two readings contradict each other less than they appear to, because they answer different questions. One counts how many studies point which way; the other measures effect size under controlled conditions. What the second says, and the authors write it themselves, is that technology works mainly as a means of communication rather than as a solution in itself.

What counts is not the time, it is the kind of use

There is one European finding worth several others. In December 2024 the European Commission's Joint Research Centre published an analysis of the 2022 EU survey on loneliness. Intensive, passive use of social media is associated with greater loneliness. Active use, and intensive use of messaging, show no significant association.

Put differently: the same screen, for the same length of time, produces opposite results depending on whether the person is watching other people's lives or talking to someone. It is the distinction that almost never makes it into the brochures.

The telephone does not escape scrutiny

It is worth looking at the oldest medium of all, not least because it is ours. In the HEAL-HOA trial in Hong Kong, befriending calls made by volunteers were used as the comparator and came out behind structured sessions in loneliness measured at twelve months. In the United Kingdom, the PLINY trial of telephone friendship groups ran into delivery problems that its own report documents with unusual frankness.

The honest reading is this: calling someone regularly is not, on its own, a demonstrated answer to loneliness. Anyone selling that is selling more than they have.

What the evidence suggests does work

The umbrella review identifies factors that recur in the studies with better results, and none of them is the brand of equipment. Frequency of use counts, so does ease of use and support at the start. Above all, direction counts: strengthening ties that already exist does better than trying to build new ones.

That finding has practical consequences for social care. It suggests technology pays off when it serves the relationship that already exists between the municipality and the person, not when it sets out to replace it.

Where this leaves the people who decide

If the evidence is modest about solving loneliness, it is a good deal firmer about something else: regular contact produces information. Someone who answers or stops answering, who replies differently from usual, who mentions a new difficulty. None of this is a clinical assessment and should not be treated as one. It is a signal, and a signal exists so that someone looks.

That is why we built MILAE as an instrument for flagging rather than for company. The call happens at whatever frequency the municipality's social care team sets, what is understood is recorded, and the person who decides what to do is always the municipal officer. Technology handles coverage, which is what it is good at: reaching the whole flagged population, every week, without depending on how many people the council can put in the field.

The useful question for a municipality is not whether technology solves loneliness. It is whether, at the end of the month, it knows more about the people it follows than it did at the start. That question has a verifiable answer.