Moon RY, Carlin RF, Hand I, Task Force on Sudden Infant Death Syndrome and the Committee on Fetus and Newborn (2022). Sleep-Related Infant Deaths: Updated 2022 Recommendations for Reducing Infant Deaths in the Sleep Environment. Pediatrics, 150(1), e2022057990. doi.org/10.1542/peds.2022-057990
奶粉不是无菌的,可能带一种细菌,新生儿感染后四成到八成会死。先倒热水,等降到约 73.8℃ 再放奶粉,多数情况下能把这种菌杀到原来的十万分之一以下。热水会让维生素 C 少一些,但测过的奶粉仍够标准。冲好放凉再喂,喝剩的倒掉。
成本
不花钱。每次多等几分钟把奶放凉。难在孩子饿得哭的时候,也要等水温降下来再冲
收益
奶粉不是无菌的,可能带阪崎克罗诺杆菌。新生儿感染后的病死率,报告为 40% 到 80%。实验研究显示:先把热水倒进奶瓶,等水温降到约 73.8 ℃ 再加奶粉,绝大多数情况下奶液温度还在 70 ℃ 以上。这样可以让这种菌减少 5 个对数级以上,降到原来的十万分之一以下。热水的代价在维生素 C 上。世卫和联合国粮农组织 2006 年开过专家会议。会上看到的数据是:用开水冲,只有维生素 C 明显减少,4 种奶粉减少 5.6% 到 65.6%。奶粉出厂时维生素 C 本来就多加了。减得最多的那种,冲好后每 100 千卡仍有 9.0 毫克,高于国际食品法典标准的下限 8 毫克。会议只看到这一项研究,所以没有就此下结论
来源
Beary MA, Daly SE, Baker J, Snyder AB (2025). Assessing Hot Water Reconstitution Instructions and Labeling of Powdered Infant Formula to Ensure Cronobacter spp. Reduction. Journal of Food Protection, 88(9), 100571. doi.org/10.1016/j.jfp.2025.100571
Sima WG, Legesse T, Girma S, et al. (2025). Emerging microbial risks: Cronobacter sakazakii in powdered infant formula for infants under six months of age in Ethiopia. BMC Microbiology, 26, 307. doi.org/10.1186/s12866-025-04380-y
Bundesinstitut für Risikobewertung (2022). Recommendations for the hygienic preparation of powdered infant formula. Updated BfR Opinion No. 009/2022. doi.org/10.17590/20220510-104706
Agostoni C, Axelsson I, Goulet O, et al. (2004). Preparation and handling of powdered infant formula: a commentary by the ESPGHAN Committee on Nutrition. Journal of Pediatric Gastroenterology and Nutrition, 39(4), 320-322. doi.org/10.1097/00005176-200410000-00002
Silano M, Paganin P, Davanzo R (2016). Time for the 70 °C water precautionary option in the home dilution of powdered infant formula. Italian Journal of Pediatrics, 42, 17. doi.org/10.1186/s13052-016-0228-9
Losio MN, Pavoni E, Finazzi G, et al. (2018). Preparation of Powdered Infant Formula: Could Product's Safety Be Improved? Journal of Pediatric Gastroenterology and Nutrition, 67(4), 543-546. doi.org/10.1097/MPG.0000000000002100
新生儿身体里存的维生素 K 很少,不补可能出血,晚出现的那种常常是脑子里出血。塔什干没普遍做这种预防,每 10万个新生儿有 478个出这种血。做了预防,估计能少掉七成八以上。在家生或在不正规机构生的,要主动问一句打了没有。
成本
0 元到几十元。这笔钱通常已经包含在住院生孩子的费用里,不用另外交
收益
新生儿体内存的维生素 K 很少。不补充可能出现维生素 K 缺乏性出血,晚出现的那一种常常表现为颅内出血(脑子里出血)。比利时的共识建议是「出生时肌肉注射 1 或 2 毫克维生素 K 一次」。在没有系统提供预防的地区,维生素 K 缺乏性出血的发生率是每 10 万人 478 例。这个数字来自塔什干的 4.2 万名新生儿。作者估计,做了预防可以使发生率下降「高于 78.5%」
Pantell RH, Roberts KB, Adams WG, et al. (2021). Evaluation and Management of Well-Appearing Febrile Infants 8 to 60 Days Old. Pediatrics, 148(2), e2021052228. doi.org/10.1542/peds.2021-052228
Spies EL, Klevens J (2016). Fatal Abusive Head Trauma Among Children Aged <5 Years — United States, 1999–2014. MMWR 65(20):505-509. doi.org/10.15585/mmwr.mm6520a1
Choudhary AK 等 (2018). Consensus statement on abusive head trauma in infants and young children. Pediatric Radiology 48(8):1048-1065. doi.org/10.1007/s00247-018-4149-1
Tappin D, Brooke H, Ecob R, Gibson A (2002). Used infant mattresses and sudden infant death syndrome in Scotland: case-control study. BMJ, 325(7371), 1007. doi.org/10.1136/bmj.325.7371.1007
Blair P, Fleming P, Smith I (1997). Case-control study of sudden infant death syndrome in Scotland. Income level or bed sharing would confound any effect of previous use of mattress. BMJ, 315(7111), 812. doi.org/10.1136/bmj.315.7111.812a
Du Toit G, Roberts G, Sayre PH, 等 (2015). Randomized trial of peanut consumption in infants at risk for peanut allergy. New England Journal of Medicine, 372(9), 803-813. doi.org/10.1056/NEJMoa1414850
Perkin MR 等 (2016). Randomized Trial of Introduction of Allergenic Foods in Breast-Fed Infants. New England Journal of Medicine, 374(18), 1733-1743. doi.org/10.1056/NEJMoa1514210(备注里那项一般婴儿试验 EAT)
Kemper AR, Newman TB, Slaughter JL, et al. (2022). Clinical Practice Guideline Revision: Management of Hyperbilirubinemia in the Newborn Infant 35 or More Weeks of Gestation. Pediatrics, 150(3), e2022058859. doi.org/10.1542/peds.2022-058859
Bhutani VK, Zipursky A, Blencowe H, et al. (2013). Neonatal hyperbilirubinemia and Rhesus disease of the newborn: incidence and impairment estimates for 2010 at regional and global levels. Pediatric Research, 74(Suppl 1), 86-100. doi.org/10.1038/pr.2013.208
Hsiao CH, Chang MH, Chen HL, et al. (2008). Universal screening for biliary atresia using an infant stool color card in Taiwan. Hepatology, 47(4), 1233-1240. doi.org/10.1002/hep.22182
Lee M, Chen SC, Yang HY, et al. (2016). Infant Stool Color Card Screening Helps Reduce the Hospitalization Rate and Mortality of Biliary Atresia: A 14-Year Nationwide Cohort Study in Taiwan. Medicine, 95(12), e3166. doi.org/10.1097/MD.0000000000003166
Centers for Disease Control and Prevention (2003). Neurologic impairment in children associated with maternal dietary deficiency of cobalamin—Georgia, 2001. MMWR, 52(4), 61-64. www.cdc.gov/mmwr/preview/mmwrhtml/mm5204a1.htm
Fewtrell M, Bronsky J, Campoy C, et al. (2017). Complementary Feeding: A Position Paper by the European Society for Paediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN) Committee on Nutrition. Journal of Pediatric Gastroenterology and Nutrition, 64(1), 119-132. doi.org/10.1097/MPG.0000000000001454
Melina V, Craig W, Levin S (2016). Position of the Academy of Nutrition and Dietetics: Vegetarian Diets. Journal of the Academy of Nutrition and Dietetics, 116(12), 1970-1980. doi.org/10.1016/j.jand.2016.09.025(备注里的反方,收益栏里的 B12 来源也出自这里)
Sims A, Chounthirath T, Yang J, Hodges NL, Smith GA (2018). Infant Walker-Related Injuries in the United States. Pediatrics, 142(4), e20174332. doi.org/10.1542/peds.2017-4332
American Academy of Pediatrics, Committee on Injury and Poison Prevention (2001). Injuries Associated With Infant Walkers. Pediatrics, 108(3), 790-792. doi.org/10.1542/peds.108.3.790
Garrett M, McElroy AM, Staines A (2002). Locomotor milestones and babywalkers: cross sectional study. BMJ, 324(7352), 1494. doi.org/10.1136/bmj.324.7352.1494
Burrows P, Griffiths P (2002). Do baby walkers delay onset of walking in young children? British Journal of Community Nursing, 7(11), 581-586. doi.org/10.12968/bjcn.2002.7.11.10889
Munns CF, Shaw N, Kiely M, et al. (2016). Global Consensus Recommendations on Prevention and Management of Nutritional Rickets. Journal of Clinical Endocrinology & Metabolism, 101(2), 394-415. doi.org/10.1210/jc.2015-2175
Beser E, Cakmakci T (1994). Factors affecting the morbidity of vitamin D deficiency rickets and primary protection. East African Medical Journal, 71(6), 358-362. europepmc.org/article/MED/7835254
Specker BL, Ho ML, Oestreich A, et al. (1992). Prospective study of vitamin D supplementation and rickets in China. Journal of Pediatrics, 120(5), 733-739. doi.org/10.1016/s0022-3476(05)80236-7
Tan ML, Abrams SA, Osborn DA (2020). Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health. Cochrane Database of Systematic Reviews, 12, CD013046. doi.org/10.1002/14651858.CD013046.pub2
Gallo S, Comeau K, Vanstone C, et al. (2013). Effect of different dosages of oral vitamin D supplementation on vitamin D status in healthy, breastfed infants: a randomized trial. JAMA, 309(17), 1785-1792. doi.org/10.1001/jama.2013.3404
备注
定 B 是因为防佝偻病的数字来自没有随机分组的比较。Cochrane 2020 年合并了给婴儿补的试验。每天补 400 IU,维生素 D 不足的孩子少约四成(RR 0.57)。但试验都小,看不出佝偻病少没少。收益定中凭判断,因为国内婴儿佝偻病有多常见没查到。吃配方奶的说法不一。美国儿科学会说,每天喝超过约 800 毫升(27 盎司)加了维生素 D 的配方奶,就不用另补。国内核心信息写的是所有婴儿都补,具体按医生说的来。别自己加量:加拿大一项试验里,每天 1600 IU 那组血里维生素 D 太高,提前停了。400 到 1200 IU 几组的长个和骨头没有差别。不缺维生素 D 的成人别为长寿去补,见第 6 节第 3 条(不缺维生素 D 的人)。
World Health Organization, UNICEF (2008). World report on child injury prevention, Chapter 4 Burns(同一页有中文版《世界预防儿童伤害报告》). iris.who.int/handle/10665/43851
Erdmann TC, Feldman KW, Rivara FP, Heimbach DM, Wall HA (1991). Tap water burn prevention: the effect of legislation. Pediatrics, 88(3), 572-577. europepmc.org/article/MED/1881739
Xu JH, Qiu J, Zhou JH, et al. (2014). Pediatric burns in military hospitals of China from 2001 to 2007: a retrospective study. Burns, 40(8), 1780-1788. doi.org/10.1016/j.burns.2014.04.003
Zhu L, Zhang Y, Liu L, et al. (2013). Hospitalized pediatric burns in North China: a 10-year epidemiologic review. Burns, 39(5), 1004-1011. doi.org/10.1016/j.burns.2012.12.014
Han D, Wei Y, Li Y, et al. (2022). Epidemiological and Clinical Characteristics of 5,569 Pediatric Burns in Central China From 2013 to 2019. Frontiers in Public Health, 10, 751615. doi.org/10.3389/fpubh.2022.751615