In the last two decades, there has been a fast-growing prevalence of infertility reported in China. Moreover, Chinese reproductive health has shown a clear decline. Thus, it is imperative to determine the precipitating causes and the root causes of this decline. Environmental and climate risks (ECRs) may cause the decline in reproductive health. Experimental findings have shown that the impact of ECRs on reproductive health can be passed down from both males and females to their offspring, demonstrating an intergenerational and transgenerational lag effect. We perceive that the declined reproductive health may lead to negative demographic consequences in China; therefore, we suggest the following five regulations be implemented: (i) prevent Chinese of childbearing age from exposure to ECRs; (ii) further develop and promote assisted reproductive technology and set up sperm and ovum banks on a national scale; (iii) quantitatively establish the causality between fathers and mothers who suffer from ECRs and the impaired reproductive health in their progeny; (iv) teach ECRs-health knowledge in psychotherapeutic training and continuing education; and (v) propagate and further promote common prosperity.

OBJECTIVE: The perceptions and attitudes of inflammatory bowel disease (IBD) patients towards pregnancy may affect their fertility plan and disease progression. We performed a nationwide multicenter survey of pregnancy-related knowledge among gastroenterologists and IBD patients in China to investigate whether specific educational interventions could improve their understanding and broadly influence fertility plan.
METHODS: A cross-sectional questionnaire regarding pregnancy-specific knowledge was carried out among 63 IBD centers in China. Questionnaires were collected from 185 physicians and 609 patients. The patients then received education regarding pregnancy during IBD and filled in the same questionnaire again. Their knowledge regarding pregnancy during IBD was compared before and after education.
RESULTS: Compared to physicians, patients\' knowledge regarding fertility (39.1% vs 70.8%), imaging examinations (22.8% vs 72.4%), endoscopy performed during pregnancy (19.9% vs 71.4%), and vaccination for infants (16.6% vs 46.5%) was significantly more limited (all P < 0.001). There was a lack of knowledge among gastroenterologists regarding the delivery mode (36.8%), medications (36.8%), and emergency surgery (26.5%) during pregnancy in patients with IBD. After education, the patients showed significant improvement in knowledge regarding medications (26.7% vs 51.7%), fertility (45.0% vs 63.3%), heritability (40.0% vs 58.3%), indications for emergency surgery (15.0% vs 53.3%), imaging examinations during pregnancy (20.0% vs 40.0%), and vaccinations for infants (26.7% vs 45.0%) (all P < 0.05).
CONCLUSIONS: Pregnancy-specific IBD knowledge needs to be improved among certain gastroenterologists and patients in China. Educational interventions can partially improve the knowledge levels of the patients.

BACKGROUND: Teenage pregnancy is still one of the reproductive health concerns facing adolescents in Tanzania. The problem has been associated with physiological, psychological, and social changes and increases the risk of unsafe abortion and adverse maternal, fetal, and neonatal outcomes among adolescents. Low utilization of contraceptive methods among adolescents is one of the key causes. The strategy of involving male adolescents in sexual and reproductive health programs can increase the rate of contraceptive use among adolescents, thereby preventing teenage pregnancy.
OBJECTIVE: To examine factors associated with the uptake of contraceptives among male secondary school adolescent students.
METHODS: This was a cross-sectional study conducted in rural secondary schools in Kisarawe District, Coast Region, Tanzania. Multi-stage sampling methods were used to recruit participants. Descriptive and multiple regression analyses were conducted to assess the prevalence and factors associated with contraceptive use. 95% confidence interval and p-value < 0.05 were considered statistical significance. Univariate and multivariate logistic regression were tested for the Crude Odds Ratio (COR) and Adjusted Odds Ratio (AOR) respectively.
RESULTS: The study involved 422 male students with the majority of them 58.1% aged 17-19 years, 50.2% were Muslim, 76.3% were studying in government schools, 62.3% were from households size of 4-6 members, 87.4% were not in a relationship, and 64.2% were living with both parents. Less than half (38.9%) of male students reported ever having sex in their lifetime, and among them, very few (29.8%) used any method of contraceptive. The reported lowest age for the first sex was 10 years. The male condom was the most method used (69.4%) and Pharmacy/Chemist Shops were the common source of contraceptive services (55.1%). Students who had adequate knowledge of contraceptives were more likely to report the use of contraceptive methods compared to those who had inadequate knowledge (AOR = 2.704, 95% CI: 1.220-5.995, p = 0.014). Participants in Private schools were 4.3 times more likely to report the use of contraceptives than those in government schools (AOR = 4.347, 95% CI: 1.758-10.762, p = 0.01). Students in a relationship were 3.5 times more likely than those not in a relationship to report the use of a contraceptive method (AOR = 3.51, 95% CI: 1.421-8.670, p = 0.006).
CONCLUSIONS: The study found the low use of contraceptives among male adolescents who ever had sex in their lifetime. Thus, it\'s suggested that age-tailored comprehensive sexual and reproductive health education should start to be taught from a very young age as adolescents initiate sex at an early age. Also, Teenage pregnancy prevention programs should involve males as the key players during the development and implementation of the program as most of the decisions among partners are from men.

BACKGROUND: Preconception care is not widespread in Japan and there is a pressing need to improve the practice. The present study assessed the knowledge and behavior of preconception care among women to seek effective intervention. Our research questions were: 1) How much do women know about preconception care? 2) How much are they practicing preconception care and what are the information sources of their behavior? 3) Do the women\'s preconception care behavior associated with accurate knowledge?
METHODS: The research was conducted in a rural town in central Japan. Using an exploratory sequential mixed methods design, we undertook interviews, developed a survey based on the qualitative results, and then conducted a survey. The interviews explored how preconception care was perceived and practiced in women of childbearing age. The survey was designed to investigate the knowledge of preconception care among women with and without pregnancy experience, their practice behavior of preconception care, and whether the behavior is associated with knowledge.
RESULTS: The participants were 13 for the interview and 232 for the survey. They had limited access to preconception care recommendations and advice for specific actions was given by obstetricians and gynecologists after pregnancy. There was a large gap in knowledge about preconception care between parous and nulliparous women, especially about the need for folic acid supplementation. Practices that were manageable in their daily lives, such as cessation of smoking and alcohol, diet, and weight management, were considered common sense. In contrast, recommended practices that require medical attention, such as screening for sexually transmitted diseases and cervical cancer, tended to be less accurately known and practiced. Participants\' sources of information about preconception care were the Internet, family and friends and mass media.
CONCLUSIONS: In rural Japan, women of childbearing age lack knowledge about preconception care, especially before their first pregnancy. Primary care providers should try outreach to schools and women\'s groups in the community, promote information sharing among family and close friends, and utilize information technology to enhance the knowledge and practice of preconception care.

This data article presents data from the China Migrants Dynamic Survey (CMDS), a multi-wave, large-scale national cross-sectional survey of China\'s internal migrants from 2009 to 2018. The CMDS is an annual questionnaire survey conducted by the former National Health and Family Planning Commission (NHFPC) of the People\'s Republic of China. The respondents included in this survey are internal migrants over 15 years old. The sample was drawn from the China Migrant Population Information System, using multi-stage stratified sampling method and the probability proportional-to-size (PPS) cluster sampling strategy. Between 2009 and 2018, there were 1,527,650 internal migrants from 23 provinces, 5 autonomous regions and 4 municipalities participated in the surveys. The survey tools were a series of self-designed questionnaires with high inheritance and consistency designed and implemented by the NHFPC. The questionnaires mainly contain basic information of the respondents and their family members, migration status, healthcare or health behaviors, public health service utilization, social insurance, social integration, and family planning. The dataset is currently the most widely used survey data on China\'s internal migrants, offering information on migration patterns, healthcare and health behaviors, use of public health services, access to social security, social integration, and family planning, which are valuable for health planning, health decision-making, and health equity research.

BACKGROUND: The uptake of the modern contraceptive method provides chances for women and couples to reach optimal child spacing, achieve the desired family size and prevent unsafe abortions and maternal deaths. Despite the efforts in the health sector still, the contraceptive prevalence rate in Zanzibar remains low (9.1%). In Pemba, few studies have been done on modern contraceptive uptake and little is known about factors that hinder the uptake of modern contraceptives among women of reproductive age. This study investigated the uptake of modern contraceptive methods among women of reproductive age (18-45 years) and its associated factors.
METHODS: This was a quantitative cross-sectional study conducted in Chake District Hospital, Pemba Tanzania. A stratified random sampling technique was used to recruit 214 eligible participants for the study. After we informed the participants, data were collected using a structured English questionnaire. The collected data was analyzed using SPSS version 25, descriptive analysis was done to determine frequencies. A chi-square test was done to determine the association between the study variables and multivariate logistic regression to check the nature and strength of the association. The p<0.05 was considered statistically significant.
RESULTS: This study included 214 women of with majority 79(36.9%) at the age group of 21-30 years, 100(46.7%) had secondary education and 187(87.4%) married. Most of the participants 212(99.1%) have heard about modern contraceptives, with health facilities being the common source of information191(45.3). More than half 120(56.1%) of the participants were not using any modern contraceptive method and injectable 38(40.4%) was the commonly reported method among users. Among the users of modern contraceptives, lack of power to decide 180(84.1%), fear of divorce 141(65.9%), and social perception of users as the cause of reduced workforce in the future 161(75.2%) were common barriers. Participants provided suggestions to improve modern contraceptive uptake including male involvement 203(94.9%) and community awareness 182(85%). Further analysis revealed women with college/university education were 2 times more likely to use modern contraceptives method compared to those with primary or not attended school(p=0.023, OR=2.437, 95% CI: 1.129-5.259). Moreover employed women were 2 times more likely to use modern contraceptives compared to unemployed/housewives (p=0.028, OR=1.844, CI=1.068-3.185).
CONCLUSIONS: This study assesses the uptake of modern contraceptives among women of reproductive age. Results showed a low uptake of modern contraceptives in this population. Although the observation in this study is similar to those reported in other countries, the updated information is still important to the policymakers and the Ministry of Health in the studied district.

Objectives: This study aimed to systematically review the effectiveness of service interventions for improving postpartum contraception, including contraceptive use, prevention of repeat pregnancies and induced abortions. Methods: A systematic literature search was conducted in three databases until June 2022 (PROSPERO registration CRD42022328349). Estimates of intervention effects from meta-analyses were represented as odds ratios (OR) with 95% confidence intervals (CI). Results: 16 studies with 14,289 participants were included, with four kinds of interventions recognized. Interventions effect in increasing use of contraceptives and decreasing rates of repeated pregnancy for up to 6 months postpartum (OR = 2.24, 0.06, 95% CI = 1.46-3.44, 0.02-0.22, respectively), with no significant associations with contraceptive use at 12 months postpartum, prevention of postpartum repeat pregnancies and induced abortions during 1 year after childbirth. Conclusion: We concluded that interventions impact the initiation of postpartum contraceptive use and prevention of repeat pregnancy with an overall certainty from low to moderate. These findings highlight the need for additional studies to integrate the beneficial effect of several interventions and then design more feasible strategies, which is important for the maternal and child healthcare systems.

NGOs recruit religious leaders as health actors in Sub-Saharan Africa. Program designers both construct religious leaders as opponents of family planning interventions who discourage their congregants from using family planning and as proponents who persuade their congregants to use them. This article investigates a family planning project that recruited religious leaders in Morogoro, Tanzania. Research findings show that binary talk obfuscates the structural underpinning of high fertility rates. The construction of static binaries of good and bad religious leaders observed mismatches with peoples\' own realities and it misses the lifelike nuances of actors\' own ethical action.

Modern contraceptive use has been shown to influence population growth, protect women\'s health and rights, as well as prevent sexually transmitted infections (STIs) for barrier contraceptive methods such as condoms. The present study aimed at assessing the level of utilization and factors associated with modern contraceptive use among sexually active adolescent girls in Rwanda.
We used secondary data from the Rwanda Demographic and Health Survey (RDHS) 2020 data of 539 sexually active adolescent girls (aged 15 to 19 years). Multistage stratified sampling was used to select study participants. We conducted multivariable logistic regression to assess the association between various socio-demographics and modern contraceptive use using SPSS version 25. Modern contraception included the use of products or medical procedures that interfere with reproduction from acts of sexual intercourse.
Of the 539 sexually active girls, only 94 (17.4%, 95% CI: 13.8-20.1) were using modern contraceptives. Implants (69.1%) and male condoms (12.8%) were the most used options. Modern contraceptive use was positively associated with older age (AOR = 10.28, 95% CI: 1.34-78.70), higher educational level (AOR = 6.98, 95% CI: 1.08-45.07), history of having a sexually transmitted infection (AOR = 8.27, 95% CI: 2.54-26.99), working status (AOR = 1.72, 95% CI: 1.03-2.88) and being from a female-headed household (AOR = 1.96, 95% CI: 1.12-3.43). However, not being in a union (AOR = 0.18, 95% CI: 0.10-0.35) and region (AOR = 0.28, 95% CI: 0.10-0.80) had negative associations.
To promote utilisation of modern contraceptives, family planning campaigns need to place more emphasis on the younger, unmarried adolescents, as well as those with lower educational levels. Consideration of household and regional dynamics is also highlighted.

BACKGROUND: The slow pace of fertility decline in Africa relative to other parts of the world has important implications for the region\'s economic development. Modern contraceptive use is seen as important population control and family planning strategy by governments worldwide. This paper examines the socioeconomic determinants of modern contraceptive use and choice among Ghanaian men and women.
METHODS: We use the most recent and nationally representative Ghana Demographic and Health Survey conducted in 2014. The analysis is observational, with no causal implications. Bivariate and multivariate methods are used to analyse the data. We first use logistic regression to explore the correlates of modern contraceptive use among Ghanaian men and women. Second, we explore the socioeconomic factors influencing the choice of modern contraceptive methods among contraceptive users using multinomial logistic regression. We classify the modern methods of contraception into three groups: long-acting reversible contraceptives (LARC), short-acting contraceptives (SAC), and permanent contraceptives.
RESULTS: Marital status proves to be the most significant predictor for both men and women, with women in monogamous unions having a greater propensity to use modern methods of contraception (OR = 1.4, p < 0.00). We also find that different factors affect the use and choice of modern methods of contraception among men and women in Ghana. Muslim men had a higher likelihood than Catholics to choose the permanent (sterilisation) method (OR = 11.9, p < 0.05), while their female counterparts were 0.25 times less likely to choose sterilisation over SAC (p < 0.05). Moreover, women who ever tested for HIV had higher use of LAC than the SAC ((RRR = 1.6, p < 0.01). The modern contraceptive users (women) with at most basic education were more likely than those with tertiary education to choose LAC over SAC. Finally, rural women with health insurance were 0.75 times (p < 0.01) less likely to use modern methods of contraception.
CONCLUSIONS: The paper reiterates the need to intensify and sustain public health education on the health benefits of using modern methods of contraception among the adult population. The paper suggests that including family planning services on Ghana\'s national health insurance benefits package is commendable. It can promote modern contraceptive use and curtail unwarranted population growth.