RESUMEN
BACKGROUND: Breastfeeding has many benefits for mothers and infants. Lactogenesis II is one of the key steps in the implementation of breastfeeding. If lactogenesis II occurs more than 72 h after delivery, it is termed delayed onset of lactation (DOL). DOL is associated with decreased milk production, shortened breastfeeding time, and pathological neonatal weight loss. A comprehensive summary of the incidence and factors influencing DOL is needed to provide a basis for improving breastfeeding practices and health outcomes. METHODS: Studies on the incidence and factors influencing DOL were retrieved from 13 Chinese and English databases (PubMed, Embase, Web of Science, Cochrane Library, CINAHL, etc.) from database inception to August 2023. Two researchers independently conducted the study screening, data extraction and quality evaluation. Stata 16.0 SE software was used for data analysis, and sensitivity analysis and publication bias tests were also performed. The qualitative description method was used to analyse studies that could not be combined quantitatively. RESULTS: A total of 35 studies involving 19,176 parturients, including 4,922 who had DOL, were included. The mean NewcastleâOttawa scale score of the included studies was ≥ 6, indicating that the quality was relatively high. Finally, the incidence of DOL was 30%, and 13 factors influencing DOL with robust results and no publication bias were obtained: prepregnancy body mass index (overweight or obesity), gestational diabetes, gestational hypertension, thyroid disease during pregnancy, serum albumin levels (< 35 g/L), parity, (unscheduled) caesarean section, caesarean section history, daily sleep duration, gestational age, birth weight (< 2.5 kg), breastfeeding guidance and daily breastfeeding frequency. However, there were still six influencing factors with undetermined associations: age, gestational weight gain, birth weight (≥ 4 kg), anxiety, time of first breastfeeding session (maternal separation) and breast massage or treatment. CONCLUSIONS: The incidence of DOL is high. Clinicians should pay attention to parturients at high risk of DOL and formulate targeted prevention strategies according to the influencing factors to reduce the occurrence of DOL and promote better maternal and infant outcomes. TRIAL REGISTRATION: PROSPERO (ID: CRD42023458786), September 10, 2023.
Asunto(s)
Lactancia Materna , Lactancia , Humanos , Femenino , Lactancia/fisiología , Incidencia , Embarazo , Trastornos de la Lactancia/epidemiología , Trastornos de la Lactancia/etiología , Factores de Tiempo , Recién Nacido , AdultoRESUMEN
BACKGROUND: Assessment ability lies at the core of midwives' capacity to judge and treat clinical problems effectively. Influenced by the traditional teaching method of "teacher-led and content-based", that teachers involve imparting a large amount of knowledge to students and students lack active thinking and active practice, the clinical assessment ability of midwifery students in China is mostly at a medium or low level. Improving clinical assessment ability of midwifery students, especially critical thinking, is highly important in practical midwifery education. Therefore, we implemented a new teaching program, "typical case discussion and scenario simulation", in the Midwifery Health Assessment course. Guided by typical cases, students were organized to actively participate in typical case discussions and to promote active thinking and were encouraged to practice actively through scenario simulation. In this study, we aimed to evaluate the effect of this strategy on the critical thinking ability of midwifery students. METHOD: A total of 104 midwifery students in grades 16-19 at the West China School of Nursing, Sichuan University, were included as participants through convenience sampling. All the students completed the Midwifery Health Assessment course in the third year of university. Students in grades 16 and 17 were assigned to the control group, which received routine teaching in the Midwifery Health Assessment, while students in grades 18 and 19 were assigned to the experimental group, for which the "typical case discussion and scenario simulation" teaching mode was employed. The Critical Thinking Disposition Inventory-Chinese Version (CTDI-CV) and Midwifery Health Assessment Course Satisfaction Questionnaire were administered after the intervention. RESULTS: After the intervention, the critical thinking ability of the experimental group was greater than that of the control group (284.81 ± 27.98 and 300.94 ± 31.67, p = 0.008). Furthermore, the experimental group exhibited higher scores on the four dimensions of Open-Mindedness (40.56 ± 5.60 and 43.59 ± 4.90, p = 0.005), Analyticity (42.83 ± 5.17 and 45.42 ± 5.72, p = 0.020), Systematicity (38.79 ± 4.70 and 41.88 ± 6.11, p = 0.006), and Critical Thinking Self-Confidence (41.35 ± 5.92 and 43.83 ± 5.89, p = 0.039) than did the control group. The course satisfaction exhibited by the experimental group was greater than that exhibited by the control group (84.81 ± 8.49 and 90.19 ± 8.41, p = 0.002). CONCLUSION: The "typical case discussion and scenario simulation" class mode can improve the critical thinking ability of midwifery students and enhance their curriculum satisfaction. This approach carries a certain degree of promotional significance in medical education.