|Home | About | Journals | Submit | Contact Us | Français|
In the past decade teenage pregnancy has become a key policy area in several industrialized countries. During the 1990s, both Britain and the USA identified teenage pregnancy as a national public health issue, alongside cardiovascular disease, cancer and mental health, requiring targeted interventions.1,2 A reason for this concern was that rates of teenage pregnancy were perceived to be higher than those in other developed countries2,3—a notion that has been taken up and inflated by the media. For example:
`Britain... has a sky-high level of teenage pregnancies.' [Daily Mail, 8 March 2001]
`The sexual behaviour of our children and teenagers has now reached such unprecedented levels of recklessness and damage that it is becoming a horror story running out of control.' [Daily Mail 28 June 2002]
In our opinion, such claims are based on selective comparisons. Here we argue that, contrary to the way in which it is frequently presented, the teenage pregnancy rate in Britain is neither high nor dramatically increasing.
When rates of teenage pregnancy are judged `high' in England, the comparison is usually with our European neighbours. Figure 1 comes from the Teenage Pregnancy Unit report of 19993 and shows the live birth rate to women aged 15–19. The rate in the UK is indeed higher than that in many other countries. However, it is also substantially lower than those in New Zealand and the USA. Further, despite the fact that current policy in the UK aims to halve teenage pregnancy rates (defined as conception rates) for under 18s by 2010,3 these figures are for live births. A country with a rate similar to or higher than that of Britain might seem to do `better' because pregnant teenagers have greater access to termination services (or use them more).4
A closer look at international comparisons reveals a more complex picture. Singh and Darroch looked at rates of `adolescent pregnancy' (again the rates examined by these workers are in fact live births) in 46 industrialized countries over the period 1970–1995, using the UN system of classification of level of development.5 As can be seen in Table 1, the birth rate to those aged 15–19 (per 1000) varies considerably between countries—from 3.9, 5.7 and 6.9 in Japan, Switzerland and Italy, to 54.3, 54.4 and 56.2 in Ukraine, the USA and Armenia. Although it is often stated that Britain has the highest teenage birth rate in Europe (see for example the Teenage Pregnancy Unit report from which Figure 1 is abstracted), this applies only to western European countries. Singh and Darroch further categorize these rates into five groups—very low (<10.0); low (10.0–19.9); moderate (20.0–34.9); high (35.0–49.9); and very high (≥50.0). In this full international comparison the England and Wales rate comes into the `moderate' category.5
Singh and Darroch also calculate changes in the birth rate to 15–19-year-olds between 1970 and 1995, where data were available. Substantial increases in the rate are seen for some countries of the former Soviet Union (Belarus, Lithuania, Ukraine, Russian Federation, Georgia and Armenia). In most countries, however, the rate has declined, often substantially (see Table 1). In England and Wales, the birth rate to 15–19-year-olds fell by 43% between 1970 and 1995. Moreover, the percentage of all births which were births to 15–19-year-olds also fell in England and Wales over the time period 1980–1995 by 56%. Singh and Darroch suggest that this trend can be seen as part of the overall decline in childbearing in all age groups across industrialized countries.5
When considering changes in teenage birth rates over time, policy documents tend to be selective in the time period examined and, more importantly, seldom make comparisons with secular trends in other age groups. Any changes (either up or down) in teenage rates may simply reflect overall patterns of fertility among all women of reproductive age. Figure 2 shows the live birth rates for women in England and Wales, by age, from the beginning of World War II to the late 1990s. For the entire time period, the highest birth rates are found among women in their 20s and early 30s, with rates in the latter age group taking over those among women in their 20s. Throughout the time period, birth rates for women under the age of 20 are relatively low. Moreover, at any one time the birth rates for women aged under 20 tend to reflect the overall pattern of changing birth rates for women of all ages in the country. Over the six decades, rates of births to teenage mothers followed patterns similar to those for the general reproductive population; there has been no explosion in the rate of births to women under the age of 20 in recent years.
Health professionals and the general public should be wary of claims that the rate of teenage pregnancy in Britain is `high' and increasing in an alarming way. International comparisons suggest that the rate is moderate and that the past six decades have seen a decline rather than a rise. Over the same three to six decades the number of adolescents having sex has increased greatly7 and the age at menarche has decreased.8 The fact that birth rates have not risen in a time when the at-risk population rose sharply, suggests that (again contrary to popular opinion) teenagers are reasonably competent at preventing unwanted pregnancies.7 We believe that the selective reporting of international and time comparisons by policy makers results in a `manufactured risk'9 and has more to do with moral panic than with public health.10
DAL is funded by a Department of Health Career Scientist Award; MS is funded by the South West Public Health Observatory.