Taking Heart: biggest ever survey of UK HIV+ makes fascinating reading

This article is more than 24 years old.

Background to the survey

The SIGMA survey is the largest study of people with HIV

conducted in the UK. 2367 people responded to a survey distributed through

Glossary

sample

Studies aim to give information that will be applicable to a large group of people (e.g. adults with diagnosed HIV in the UK). Because it is impractical to conduct a study with such a large group, only a sub-group (a sample) takes part in a study. This isn’t a problem as long as the characteristics of the sample are similar to those of the wider group (e.g. in terms of age, gender, CD4 count and years since diagnosis).

generic

In relation to medicines, a drug manufactured and sold without a brand name, in situations where the original manufacturer’s patent has expired or is not enforced. Generic drugs contain the same active ingredients as branded drugs, and have comparable strength, safety, efficacy and quality.

epidemiology

The study of the causes of a disease, its distribution within a population, and measures for control and prevention. Epidemiology focuses on groups rather than individuals.

cross resistance

The mechanism by which a virus that has developed resistance to one drug may also be resistant to other drugs from the same class. 

 

combination therapy

A therapy composed of several drugs available either as separate tablets, or as fixed-dose combination (FDC).

newsletters and self-help groups, and regional and gender distribution of

respondents closely matched national distribution. However, responses from Black

Africans under-represented national epidemiology, comprising 6% of the sample

compared with 17% of those diagnosed HIV-positive in England and Wales in

1997.

Educational attainment was high in this sample, especially

amongst gay men (34% of gay men had degrees), but many Africans had also

completed further education (35% had diplomas).It is not known how accurately

these samples reflect the national picture of educational attainment amongst

people with HIV, although previous research amongst gay and bisexual men

suggests that this sample matches the distribution of educational attainment

found in that study.

A third of respondents were in paid employment, the vast

majority (76.9%) working full-time. People in work were more likely to be

younger gay men living in London.

Adherence - who needs most help?

· Non-adherence to therapy is mainly due to forgetfulness,

the study found.
· Adherence is unrelated to the number of medications ,

pills or daily doses
· Lack of knowledge of the link between adherence and

viral resistance was significantly associated with missing doses
· Adherence

improves with age: 55% of those under 30 had missed a dose in the previous month

compared with 45% of those over 490 and 40% of those over 50.
· Black

Africans were more likely to have missed doses in the previous month (62.8%)

than others (48%).
· Those living with a partner were less likely to miss a

dose than those living alone (44% vs 56%)
· Those in paid employment were

less likely to have missed a dose in the previous month than those not

working.

No other characteristics (including educational level, side

effects, injecting drug use etc) had a significant association with adherence

patterns.

What support is being given when people start

therapy?

Whilst most people reported that someone had talked to them

about how to take the pills when they started combination therapy (88%), only

half of those taking combination therapy discussed therapy in the context of

their everyday life when they started treatment. Nearly 30% were given no

written information when they started treatment. Only 42% received all three

interventions when starting therapy.

Respondents identified health care professionals as most

helpful in learning how to take combination therapy; only friends and family

(11.8%) and NAM (6.6%) figured significantly as non-medical sources of advice

and information on how and when to take medication. Strikingly, despite their

key role in dispensing medication, pharmacists were named by only 6% of

respondents as `most helpful' in learning about therapy.

Where are people getting treatment

information?

Unsurprisingly, the majority of people identify health care

professionals, particularly their doctor, as the most important source of

information. 29.9% named their doctor as the single most helpful source.

However, NAM's treatment publications were singled out as the single most

helpful source of information by 23.3% of respondents, and when respondents were

asked to name the three most helpful sources of treatment information, there was

little difference in the proportion who cited their doctors (49.9%) or NAM

(47%).

The five most commonly used information sources are doctors,

NAM, Body Positive, friends and family, and the Internet.

The survey also found that specialist organisations targeted

at specific communities and generic AIDS organisations providing a wide range of

services were not seen by respondents as key sources of treatment information.

NAM was named as the most helpful information source by gay men, injecting drug

users, women, haemophiliacs and Africans, despite the existence of targeted

services or publications for each group.

What information do people want?

76.5% of respondents were satisfied with what they knew

about treatments: 92% of respondents indicated that they understood the main

reason why resistance occurs, and 71% knew that resistance to one drug might

lead to resistance to another drug.

55% wanted to learn more, with the overwhelming demand for

information on current treatment options and side effects. Keenness to learn

more was especially strong among Black Africans, who were less likely to

indicate that they knew about viral resistance or cross-resistance.

Use of medical services and voluntary services

Respondents were, in general, satisfied with the service

they received at clinics. The median time spent with a doctor during a clinic

visit was 30 minutes, and half of those on therapy visited their clinic at least

once a month. The overwhelming majority of people (97%) had informed their GPs

of their HIV status, and 57% had visited their GP in the past six months.

Specialist organisations were less frequently used. Only 41%

of Africans had used an African-specific agency, only 17% of gay men had ever

used a gay-specific agency, and only 14% of all respondents had used a helpline

of any sort.