A. Oakley et al., SEXUAL HEALTH-EDUCATION INTERVENTIONS FOR YOUNG-PEOPLE - A METHODOLOGICAL REVIEW, BMJ. British medical journal, 310(6973), 1995, pp. 158-162
Objectives-To locate reports of sexual health education interventions
for young people, assess the methodological quality of evaluations, id
entify the subgroup with a methodologically sound design, and assess t
he evidence with respect to the effectiveness of different approaches
to promoting young people's sexual health. Design-Survey of reports in
English by means of electronic databases and hand searches for releva
nt studies conducted in the developed world since 1982. Papers were re
viewed for eight methodological qualities. The evidence on effectivene
ss generated by studies meeting four core criteria was assessed. Judgm
ents on effectiveness by reviewers and authors were compared. Papers-2
70 papers reporting sexual health interventions. Main outcome measure-
The methodological quality of evaluations. Results-73 reports of evalu
ations of sexual health interventions examining the effectiveness of t
hese interventions in changing knowledge, attitudes, or behavioural ou
tcomes were identified, of which 65 were separate outcome evaluations.
Of these studies, 45 (69%) lacked random control groups, 44 (68%) fai
led to present preintervention and 38 (59%) postintervention data, and
26 (40%) omitted to discuss the relevance of loss of data caused by d
rop outs. Only 12 (18%) of the 65 outcome evaluations were judged to b
e methodologically sound. Academic reviewers were more likely than aut
hors to judge studies as unclear because of design faults. Only two of
the sound evaluations recorded interventions which were effective in
showing an impact on young people's sexual behaviour.Conclusions-The d
esign of evaluations in sexual health intervention needs to be improve
d so that reliable evidence of the effectiveness of different approach
es to promoting young people's sexual health may be generated.