Cesarean delivery in northeast region of Brazil, 1978-80

Rising rates, changing relationships: caesarean section and its correlates in South Korea, 1988-2000

OBJECTIVE

To examine the trends in the relationship between caesarean section rates in South Korea and its correlates.

DESIGN

Five rounds (1988, 1991, 1994, 1997 and 2000) of population-based National Fertility and Family Health Survey of South Korea.

SETTING

South Korea. Sample Mothers (N= 9184) aged 15-44 years.

METHODS

Caesarean rates were calculated according to correlates and then directly adjusted to five-year age and parity groups. Distribution of all samples (9184 mothers) was standard, producing age- and parity-adjusted caesarean rates. Linear trends of correlates with caesarean rates were examined for ordinal variables such as education, income, urbanisation level (area of residence) and level of prenatal visits.

MAIN OUTCOME MEASURE

Age- and parity-adjusted caesarean section rates.

RESULTS

As caesarean rates rose by year, the relationship of caesarean section with education, occupation and area of residence has been reversed. Associations between caesarean rates, income level, place of delivery and level of prenatal visit were found in 1988 but disappeared by 2000. In 2000, relatively low caesarean rates were found in variables that will be more prevalent in the future, such as higher maternal education, higher maternal occupation and residence in big cities.

CONCLUSION

Caesarean rates may have reached a plateau in South Korea. No maternal or health service factors were detected to further increase the proportion of caesarean deliveries.

Explaining caesarean section in Salvador da Bahia, Brazil

In Salvador da Bahia the caesarean section rate is excessive, as it is in Brazil as a whole. It is the standard form of delivery in private hospitals, though vaginal delivery still predominates in the public sector. This paper investigates the social context of these styles of childbirth, arguing that the connections between both sectors sustain this situation. Exploring the factors leading to the preference in private and insurance-funded maternity wards, it examines critically two diverging positions on the cause of the rate: that women's cultural preferences for abdominal birth lie behind it; or that obstetricians' self-interest is to blame. The paper critiques the theory of culture behind the first stance and questions the theoretical weight placed on individual action in the second. It argues that no particular social group is the principal cause of the excessive use of caesarean section to deliver babies. Rather, a host of factors converge in sustaining this practice. Finally, the paper stresses that the system as a whole, not any particular group, must be changed if the rate is to be lowered significantly. For this, political will is required.

[Cesarean sections: an epidemic profile]

This study characterizes cesarean rates among women giving birth in São José do Rio Preto in 1992. Household interviews were conducted with 553 women selected through records on live births. Estimated incidence of cesarean sections was 80.5%, highlighting the procedure's widespread use in the study sample. Confirming a prior hypothesis, cesarean rates increased with parity and were statistically associated with age and tubal ligation. As for socioeconomic status, cesarean rates increased according to income and were higher among women using private health care (with or without health insurance). Interviews with professors in the local medical school and a related survey of the local media showed an increase in the valorization of cesareans. Confirming this trend, women interviewed in the survey expressed their own active valorization of this procedure.

Are Brazilian women really choosing to deliver by cesarean?

Brazil has among the highest cesarean section rates in the world, with 36% of women in the country delivering surgically. Women, especially those who deliver in private hospitals with cesarean rates in the 80-90% range, are often portrayed as actively choosing to deliver surgically. Doctors typically promote this view, also common in the popular understanding of the phenomenon, that it is women's demand for a cesarean that is behind the high rates. Academic analyses tend to present a more balanced view with doctors' motives for wanting to perform cesareans included alongside descriptions of women's motives for the procedures. What is typically missing from such analyses is a discussion of the power differences between women and doctors. Doctors clearly have more decision-making power in the hospital birthing situation, and their medical expertise and authority is often marshaled to convince a woman to "choose" a cesarean. Using data collected from a postpartum survey, participant observation in hospital obstetrics wards, and in-depth interviews. I offer evidence which refutes many of the hypotheses associated with why women might prefer to deliver by cesarean. I also show that the majority of women surveyed in two cities in Brazil, particularly first-time mothers, do not seek to deliver by cesarean. Through an analysis of conversations between doctors and women during labor and delivery, and through women's narratives of their delivery experiences, I also show some of the mechanisms that doctors use in order to induce so-called demand for surgical delivery and argue that they are very active participants in the ongoing construction of the culture of cesarean section in Brazil.

What is the optimal caesarean section rate? An outcome based study of existing variation

STUDY OBJECTIVE

To investigate the consequences of different levels of caesarean section (CS) rate in terms of fetal and maternal outcomes.

DESIGN

Comparison of outcome variables between four categories of maternity units stratified according to CS rates. Data were collected concurrently.

SETTINGS

All 17 maternity units in one health region.

SUBJECTS

Data for the perinatal mortality analysis: all 221,867 deliveries in 1983-87 (excluding severe malformations) (1462 deaths); maternity information analysis system: all 36,727 women with singleton pregnancies who delivered in 1988.

OUTCOME MEASURES

Perinatal mortality, Apgar scores at one and five minutes, onset of respiration after one minute, postnatal transfusion, postnatal infection, thromboembolism, low haemoglobin concentration at discharge, and puerperal psychosis were determined.

RESULTS

Teaching hospitals with an increased proportion of high risk cases had the highest CS rate, but the other three categories were found to serve comparable populations. Perinatal mortality showed a birthweight specific pattern--for very low birthweight infants, but not for other deliveries, mortality rates were lower in units with higher CS rates. Apgar scores showed no trend, but the onset of respiration after one minute was significantly more frequent in units with a CS rate of less than 10%. Increased maternal postnatal blood transfusion was associated with higher CS rates but no trend was observed for the other maternal variables.

CONCLUSIONS

CS rates in general maternity units should be 10 to 12% or lower in the singleton population as a whole, but a more interventionist approach is indicated for very low birthweight infants. If confirmed, these recommendations could easily be incorporated into clinical audit.

Medically unnecessary cesarean section births: introduction to a symposium

Between 1965 and 1986, the United States cesarean section rate increased from 4.5 to 24.1%. Increasingly, childbearing women and their advocates, along with many others, have recognized that a large proportion of cesareans confers a broad array of risks without providing any medical benefit. A growing literature examines the diverse causes of medically unnecessary cesareans and the diverse effects of surgical birth on women, infants, and families. Various programs and policies have been proposed or implemented to reduce cesarean rates. In recent decades, many other nations have also experienced a sharply escalating cesarean section rate. It is reasonable to conclude that a largely uncontrolled international pandemic of medically unnecessary cesarean births is occurring. The level of political, analytic, and programmatic activity that has occurred in the U.S. regarding medically unnecessary surgical births does not seem to be paralleled in other nations with sharply escalating rates. This symposium was organized with the objective of presenting the U.S. experience with various dimensions of the problem of medically unnecessary cesareans to an international audience. Although preliminary and inadequate, it is hoped that this experience will encourage policy leaders and investigators throughout the world to recognize and address the problem of run-away cesarean section births. The first section of this introduction summarizes the U.S. experience with medically unnecessary cesareans from the perspective of trends, causes, consequences, and solutions. The second section covers the same topics, presenting selected material from various other nations throughout the world. In the course of these overviews, I introduce the symposium's seven contributions, most of which focus on circumstances in the U.S.

Prevalence and determinants of caesarean section in Jamaica

The prevalence and determinants of primary caesarean section in Jamaica were estimated from a survey of women aged 14-49 years. Among 2328 women reporting 2395 live hospital births during the period January 1984 to May 1989, the prevalence of caesarean section was 4.1%. Repeat caesarean sections accounted for 1.3% of the hospital births during that period. Of the medical complications studied, prolonged labour and/or cephalopelvic disproportion carried the highest risks of primary caesarean section, followed by breech presentation, maternal diabetes, a high birth-weight baby, maternal hypertension, and a low birth-weight baby. The risk of primary caesarean section increased with maternal age, decreased with parity, was higher for urban than for rural residents, and was higher for births in private versus government hospitals.

A operação cesárea no Brasil: incidência, tendências, causas, conseqüências e propostas de ação

Os autores fazem uma análise sobre a situação da operação cesárea no Brasil, que atingiu, na última década, níveis de incidência extremamente elevados, superiores aos de qualquer outro país. A partir dos dados disponíveis a nível nacional sobre a incidência de cesáreas ao longo dos anos, tenta-se caracterizar esta tendência e estabelecer suas diferenças sócio-econômicas e regionais, que mostram uma incidência mais alta para os indivíduos e regiões mais favorecidos economicamente. Consideram-se, também, os fatores que influenciam esta alta incidência, incluindo os fatores sócio-culturais, de organização da atenção obstétrica e fatores institucionais e legais. Enfatiza-se a esterilização cirúrgica que, sendo proibida no país, é realizada disfarçadamente através de uma indicação inadequada de cesárea. São analisadas, ainda, as conseqüências sobre a morbidade e mortalidade materna e perinatal, seus efeitos sobre a fecundidade da população e dos gastos extras para os cofres públicos decorrentes desta situação. Finalmente, propõem-se uma série de intervenções e mudanças que seriam necessárias a diversos níveis para reverter esta indesejável tendência de aumento da incidência de operações cesáreas.

Contraceptive method change among rural Sri Lankan women

Patterns of contraceptive method change and their association with reproductive motivation and contraceptive failure are examined using data from a 1986 survey of family planning behaviour of rural Sinhalese married women aged 15-44 in seventeen districts of Sri Lanka. A notable degree of rationality in contraceptive method changes occurs with family formation. The attempt to control unwanted fertility leads to more efficacious use of contraception, including traditional methods. Some methodological improvements to the analysis of contraceptive switching are indicated. Implications of the findings for programmatic emphasis on permanent versus non-permanent modern methods are discussed.

Comparisons of national cesarean-section rates

Our study of cesarean rates in 19 industrialized countries of Europe, North America, and the Pacific revealed sharp differences in rates, ranging from a low of 5 (Czechoslovakia) to a high of 18 (United States) per 100 hospital deliveries in 1981. Differences in cesarean rates according to maternal age, parity, and complications of pregnancy and childbirth reflected national differences in obstetrical practice. For example, the percentage of mothers who had a vaginal birth after a previous cesarean section was only 5 in the United States as compared with 43 in Norway, where the cesarean rate was half that in the United States. Despite the wide range of cesarean rates, almost all the countries studied have had consistent increases over the past decade, and the annual rate of increase for all countries appears to be converging. The steady pace of increase in developed countries, combined with comparable or even higher rates of cesarean delivery now being reported in less developed countries, underscores the need for the medical community to consider the appropriateness of this continued rise in the number of cesarean deliveries.