3.1 The discharge teaching content received by hospitalized postpartum women currently meets the expected needs of postpartum women

In this study, the total discharge teaching quality score was 111.95 ​± ​28.64, the average score of the received content items was 7.74, and the average score of the teaching skills and effects items was 8.64. This suggests that postpartum women highly approve of nurses' discharge teaching skills but that the content of discharge teaching should be improved. As depicted in Table 1, there was no statistically significant difference between the total scores of the teaching content needed and received (p ​> ​0.05). The scores for the six items for the content needed subscale were consistent with the received scores (p ​> ​0.05), thus revealing that the content obtained by the patients satisfied their needs. Only the item “Skills in infant care before returning home” had a higher score for what should be obtained than for what was actually obtained. One possible reason for this result is that 77.1 ​% of the postpartum women in this study were primipara, 54.5 ​% of the postpartum women's main caregivers were nurse workers during hospitalization, 26.7 ​% of the main caregivers were husbands, and 40.8 ​% of the expected primary caregivers during hospitalization were husbands. Although the husband is a vital baby caregiver, it is particularly common for the father to lack knowledge and skills in baby care.^8,9 Mothers who are preparing to be discharged are more likely to need to acquire more baby care skills when their husbands do not accompany them during hospitalization. Accordingly, obstetric doctors and nurses can use a variety of health education methods during hospitalization, such as providing videos or health education materials to family members, to improve the baby care skills of postpartum women before they return home.

The items with the lowest scores for the content needed and received during discharge teaching were related to information on emotional adjustment after returning home. This indicates that, compared with postpartum physical rehabilitation and newborn care, both postpartum women and nurses pay less attention to mental health. The birth of a child brings joy to the family but also adds considerable troubles and challenges to the parents. Postpartum women not only need to adapt to their physical discomfort after childbirth but also take responsibility for taking care of their children. Postpartum depression is a common negative emotion of postpartum women. Numerous epidemiological studies have suggested that the prevalence of postpartum depression in developing countries and developed countries during the perinatal period ranges from 14% to 25 ​%,^10,11 and the prevalence in China is 1.66%–34.8 ​%.^12,13 In general, postpartum depression occurs within 2 weeks after delivery, with significant symptoms apparent by 4–6 weeks. The symptoms begin to abate by 6 months after delivery, but they can also last for 1–2 years.¹⁴ As revealed by a systematic review, the incidence of postpartum depression is the highest at 1 week after delivery.¹⁵ Existing research indicates that health education during pregnancy and postpartum support can reduce postpartum depression in pregnant women to varying degrees.¹⁶ Accordingly, obstetric nurses should pay attention to the emotional changes of postpartum women, listen more to their complaints, and provide more newborn care guidance and psychological support. The development of maternal mental health education programs, early identification of maternal psychological symptoms, and timely provision of psychological help and resources should be highlighted. This will enhance the ability of pregnant women to solve psychological problems, ensure the health of postpartum women and infants, and help restore the physiological, psychological, and social functions of the mother to the optimal state.

3.2 Analysis of the difference in the discharge teaching quality scores for hospitalized postpartum women with different characteristics

The results of multivariate analysis showed that the degree of wound pain and infant feeding methods were the factors influencing the quality of discharge teaching for hospitalized postpartum women. However as depicted in Table 3, the scores of the skills and effects of discharge teaching and the total scores for the quality of discharge teaching for postpartum women with postpartum complications, long ambulation time, and severe wound pain were significantly lower than those of the postpartum women without complications, early resumption of activities, and less wound pain, respectively. The reason for the difference in scores between women with and without complications is that patients with postpartum complications (e.g., fever, abdominal distension, or urinary retention) need more discharge teaching content. However, because the clinical discharge teaching content is not targeted, the actual discharge teaching content received by the postpartum women will not be sufficient, and the skills and effects scores of discharge teaching will be poor. Therefore, nurses should be aware of the occurrence of postpartum complications and give targeted instructions. Moreover, for postpartum women with severe wound pain after cesarean section and vaginal delivery, nurses should provide effective pain care to reduce the risk of abdominal distension or other complications due to the effect of wound pain on ambulation time. Existing research suggests that pain care significantly increases the ability of postpartum women to produce endorphins after surgery, which can act on enkephalin receptors and provide pain relief.¹⁷ Pain management can help postpartum women become more confident and significantly reduce the probability of postpartum depression. Nurses should be committed to building a trusted platform between medical care professionals and maternity patients so that patients can gain more knowledge about pain relief.

The total discharge teaching quality scores for content received, teaching skills and effects for postpartum women with bottle-fed infants were significantly lower than those of postpartum women with breastfed infants. In this study, 28 postpartum women could not breastfeed during hospitalization because of specific diseases or the use of certain drugs, and they used the formula provided by the hospital. After discharge, these postpartum women need to know how to feed a newborn and the precautions to take when using formula. Therefore, the nurse should provide instruction on neonatal feeding and the precautions for breast care after discharge, to meet the needs of these postpartum patients, improve the skills learned during discharge teaching, and thus improve the quality of discharge teaching.

Although the results of multivariate analysis indicated that infant health status is not an influencing factor, previous studies have shown that 10%–21.2 ​% of newborns are transferred to the neonatal department for monitoring and treatment due to premature delivery, asphyxia, infection, neonatal jaundice, or other high-risk factors, thus resulting in separation of mother and infant.^18,19 When separated from their baby, postpartum women not only face worries about the safety of their newborn but also get used to being separated from their newborns, resulting in negative emotions, anxiety, depression, and other symptoms.²⁰ Thus, nurses should pay more attention to the concerns of postpartum women who have been separated from their infants or whose infants have birth defects and give them the confidence to provide self-care and baby care.