Declining fertility and the use of cesarean delivery: evidence from a population-based study in Taiwan

Why do Mothers from Remote Rural Areas opt for Cesarean Delivery: An Observational Analytical Study from West Bengal, India

Background

The percentage of cesarean section (C-section) deliveries has doubled in the last two decades in India. Although C-section delivery is a life-saving intervention, multiple maternal and neonatal morbidities are often associated with this procedure, adversely affecting the quality of life of both the mother and child.

Material and Methods

This community-based cross-sectional study was conducted to assess the point of view of mothers who delivered from January 2020 to June 2021.

Results

The mean (standard deviation (SD)) age of the 866 study participants at delivery was 24.5 (4.8) years, and 60.2% were primigravidas. A total of 613 (70.8%; 95% CI: 67.8-73.8) C-sections were conducted, of which 65.9% (n = 404) were planned and 21.9% were done on maternal request. C-sections were significantly associated with private institutes (adjusted prevalence ratio (aPR) 1.90; 95% CI: 1.70-2.11), at-risk pregnancy (aPR 1.37; 95% CI: 1.26-1.49), and primigravida (aPR 1.16; 95% CI: 1.05-1.29). About 55.3%, 29.8%, and 14.9% of women considered vaginal delivery to be risky, painful, and inconvenient, respectively.

Conclusion

It is imperative to generate awareness regarding modes of delivery during antenatal care (ANC) so that mothers can make better-informed choices.

Caesarean deliveries, subsequent reproductive behaviour and children ever born in India

Against the backdrop of the alarming rise in Caesarean section (C-section) births in India, this study aimed to examine the association between C-section births, fertility decline and female sterilization in the country. A cross-sectional design was used to investigate the association between C-section delivery and subsequent reproductive behaviour in women in India. Data were from the National Family Health Survey (NFHS-4). The study sample comprised 255,726 currently married women in the age group of 15-49 years. The results showed a strong positive relationship between C-section births and female sterilization. The predicted probabilities (PP) from the multivariate regression model indicated a higher chance of female sterilization in women with C-section births (PP = 0.39, p<0.01) compared with those with non-C-section births (PP = 0.20, p<0.01). Both state-level correlation plots and Poisson regression estimates showed a strong negative relationship between C-section births and mean children ever born (CEB). Based on the results, it may be concluded that the use of C-sections and sterilization were strongly correlated in India at the time of the NFHS-4, thus together contributing to fertility decline. A strong negative association was found between the occurrence of C-sections and CEB. The increased and undesired use of C-section births and consequent female sterilization is a regressive socio-demographic process that often violates women's rights. Fertility decline should happen through informed choice of family planning and must protect the reproductive rights of women.

C-sections and hospital characteristics: a long term analysis on low-risk deliveries

BACKGROUND

Policymakers aim to reduce C-section (CS) rates, due to well documented overtreatment. However, little is known about how hospital characteristics relate to their c-section rates on low-risk deliveries (CSR-LRD).

METHODS

CSR-LRD were computed using inpatient data from all Portuguese National Health Service hospitals (2002-2011). Linear and Fractional Response Models were estimated to quantify the relationship between CSR-LRD and a set of hospital characteristics: hospital size, type (exclusively obstetrics or not), Neonatal Intensive Care Unit (NICU) availability, obstetrician-to-obstetric bed ratio, and teaching status.

RESULTS

CSR-LRD increased from 11.7% (2002) to 14.1% (2008), declining to 12.5% in 2011. While larger hospitals and hospitals with NICU had higher CSR-LRD rates, teaching status and obstetrician-to-obstetric bed ratio had no significant effect. Adjusted estimates, controlling for those four characteristics, indicate 91% of the variation in the CSR-LRD is left unexplained.

CONCLUSION

Hospital characteristics do not explain variation in CSR-LRD rates. Further studies considering medical practice, financial incentives to hospitals and/or physicians, and patient education are needed.

Global incidence of caesarean deliveries on maternal request: a systematic review and meta-regression

BACKGROUND

Caesarean delivery on maternal request (CDMR) is considered a significant contributor to the unprecedented increase in caesarean deliveries (CDs) for nonclinical reasons. Current literature lacks a reliable assessment of the rate of CDMR, which hinders the planning and delivery of appropriate interventions for reducing CDMR rates.

OBJECTIVES

To conduct a systematic review of the literature and meta-regression to explore the global incidence of CDMR.

SEARCH STRATEGY

PubMed, Embase, CINAHL, Medline, Google scholar and grey literature were searched from January 1985 to May 2019.

SELECTION CRITERIA

Observational studies that report CDMR data were included. We excluded non-English articles, case notes, editorial reviews and articles reporting elective CDs from pregnancy risk factors.

DATA COLLECTION AND ANALYSIS

Two reviewers independently conducted the screening and quality appraisal using a validated tool. The weighted average of CDMR over total deliveries (absolute proportion) and by total CDs (relative proportion) were generated. Quality-effects meta-regression was used to explain the variability of the CDMR estimates by moderators, including study methodology and demography of study participants.

MAIN RESULTS

We identified 31 articles from 14 countries that include 5 million total births. The absolute proportion of CDMR varies between 0.2 and 42.0%, with significant variations across studies and subgroups. The economic status of the country and study year together explained 84% of the absolute and 76% of the relative proportion of CDMR variation.

CONCLUSIONS

An appropriate reporting of CDMR should be a key priority in maternal health policies and practices.

TWEETABLE ABSTRACT

Globally, the proportion of maternal requested caesarean delivery has mostly been influenced by the economic status of the country.

How is women's demand for caesarean section measured? A systematic literature review

Background

Caesarean section rates are increasing worldwide, and since the 2000s, several researchers have investigated women’s demand for caesarean sections.

Question

The aim of this article was to review and summarise published studies investigating caesarean section demand and to describe the methodologies, outcomes, country characteristics and country income levels in these studies.

Methods

This is a systematic review of studies published between 2000 and 2017 in French and English that quantitatively measured women’s demand for caesarean sections. We carried out a systematic search using the Medline database in PubMed.

Findings

The search strategy identified 390 studies, 41 of which met the final inclusion criteria, representing a total sample of 3 774 458 women. We identified two different study designs, i.e., cross-sectional studies and prospective cohort studies, that are commonly used to measure social demand for caesarean sections. Two different types of outcomes were reported, i.e., the preferences of pregnant or non-pregnant women regarding the method of childbirth in the future and caesarean delivery following maternal request. No study measured demand for caesarean section during the childbirth process. All included studies were conducted in middle- (n = 24) and high-income countries (n = 17), and no study performed in a low-income country was found.

Discussion

Measuring caesarean section demand is challenging, and the structural violence leading to demand for caesarean section during childbirth while in the labour ward remains invisible. In addition, the caesarean section demand in low-income countries remains unclear due to the lack of studies conducted in these countries.

Conclusion

We recommend conducting prospective cohort studies to describe the social construction of caesarean section demand. We also recommend conducting studies in low-income countries because demand for caesarean sections in these countries is rarely investigated.

Caesarean delivery before 39 weeks associated with selecting an auspicious time for birth in Taiwan

BACKGROUND

Caesarean delivery before 39 weeks of gestation increases the risk of morbidity among infants. Taiwan has one of the highest caesarean rates in the world, but little attention has been paid to this issue. This study aimed to describe the rate of caesarean delivery before 39 weeks gestation among women who did not have labour signs and had a non-emergency caesarean delivery in Taiwan and to examine whether the phenomenon was associated with the Chinese cultural practice of selecting an auspicious time for birth.

METHODS

We recruited women at 15-28 weeks of pregnancy at 5 hospitals in northern Taiwan and followed them at 4 or 5 weeks after delivery using structured questionnaires. This analysis included 150 primiparous mothers with a singleton pregnancy who had a non-emergency caesarean delivery without the presence of labour signs.

RESULTS

Ninety-three of these women (62.0%) had caesarean deliveries before 39 weeks of gestation. Logistic regression analysis showed that women who had selected an auspicious time for delivery (OR=2.82, 95% CI: 1.15-6.95) and delivered in medical centres (OR=5.26, 95% CI: 2.25-12.26) were more likely to deliver before 39 weeks of gestation.

CONCLUSION

Non-emergency caesarean delivery before 39 weeks of gestation was common among the study women, and was related to the Chinese cultural practice of selecting an auspicious time for birth. Further studies are needed to examine the risks and benefits associated with timing of caesarean delivery in Taiwan in order to generate a consensus among obstetricians and give pregnant women appropriate information.

Do caesarean section rates 'catch-up'? Evidence from 14 European countries

This study investigated the catch up effect of Caesarean Section (CS) birth rates across 14 European countries during 1980-2009 for the first time. The panel stationary test incorporating multiple structural breaks and cross-sectional dependence was used to provide reliable evidence for the existence of the catch up effect of CS birth rates. Our results suggested that the CS birth rates in 14 European countries have mostly exhibited signs of convergence through a steady upward trend from 1980 to 2009. Policymakers in low CS birth rate countries should be cautioned concerning the negative impact of the increase of CS births.

Mind the information gap: fertility rate and use of cesarean delivery and tocolytic hospitalizations in Taiwan

BACKGROUND

Physician-induced demand (PID) is an important theory to test given the longstanding controversy surrounding it. Empirical health economists have been challenged to find natural experiments to test the theory because PID is tantamount to strong income effects. The data requirements are both a strong exogenous change in income and two types of treatment that are substitutes but have different net revenues. The theory implies that an exogenous fall in income would lead physicians to recoup their income by substituting a more expensive treatment for a less expensive treatment. This study takes advantages of the dramatic decline in the Taiwanese fertility rate to examine whether an exogenous and negative income shock to obstetricians and gynecologists (ob/gyns) affected the use of c-sections, which has a higher reimbursement rate than vaginal delivery under Taiwan's National Health Insurance system during the study period, and tocolytic hospitalizations.

METHODS

The primary data were obtained from the 1996 to 2004 National Health Insurance Research Database in Taiwan. We hypothesized that a negative income shock to ob/gyns would cause them to provide more c-sections and tocolytic hospitalizations to less medically-informed pregnant women. Multinomial probit and probit models were estimated and the marginal effects of the interaction term were conducted to estimate the impacts of ob/gyn to birth ratio and the information gap.

RESULTS

Our results showed that a decline in fertility did not lead ob/gyns to supply more c-sections to less medically-informed pregnant women, and that during fertility decline ob/gyns may supply more tocolytic hospitalizations to compensate their income loss, regardless of pregnant women's access to health information.

CONCLUSION

The exogenous decline in the Taiwanese fertility rate and the use of detailed medical information and demographic attributes of pregnant women allowed us to avoid the endogeneity problem that threatened the validity of prior research. They also provide more accurate estimates of PID.JEL Classification: I10, I19, C23, C25.

Association between type of health insurance and elective cesarean deliveries: New Jersey, 2004-2007

OBJECTIVES

I examined the relationship between insurance coverage, which may influence physician incentives and maternal choices, and cesarean delivery before labor.

METHODS

I analyzed hospital discharge data for mothers without previous cesarean deliveries in New Jersey between 2004 and 2007, with adjustment for maternal age, race, marital status, and maternal, fetal, and placental conditions.

RESULTS

Nearly 1 in 7 women (13.9%) had a cesarean delivery without laboring. Insurance status was strongly associated with cesarean birth. Women insured by Medicaid (adjusted relative risk [ARR] = 0.88; 95% confidence interval [CI] = 0.84, 0.91) or self-paying (ARR = 0.81; 95% CI = 0.78, 0.85) had a significantly lower likelihood, and women insured by BlueCross (ARR = 1.06; 95% CI = 1.03, 1.09) or standard commercial plans (ARR = 1.06; 95% CI = 1.02, 1.10) had a significantly higher likelihood of cesarean delivery than did women insured by commercial health maintenance organizations. These associations persisted in subsets restricted to lower-risk women and in qualitative sensitivity analyses for a hypothetical single, binary, unmeasured confounder.

CONCLUSIONS

Insurance status has a small, independent impact on whether a woman without a previous cesarean delivery proceeds to labor or has a cesarean delivery without labor.