| Titre : | Validity and public health implications of maternal perception of the onset of lactation: an international analytical overview (2001) |
| Auteurs : | R Pérez-Escamilla, Auteur ; Donna J. Chapman, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Journal of Nutrition (Vol.131 n°11, Novembre 2001) |
| Article en page(s) : | pp.3021S-3024S |
| Langues: | Anglais |
| Index. décimale : | PH.1.1 (Lactation) |
| Catégories : | Lactation ; Lactogénèse ; Mère |
| Résumé : | The main objective of this analytical overview is to assess the validity of maternal perception of the onset of lactation (OL) as an indicator of lactogenesis stage II (LS-II). Prospective studies that assessed OL and/or LS-II [based on test-weighing milk volume (MV) and/or breast milk biomarkers (BMB)] were identified. OL is a clearly defined and easily identified event across cultures, with the overwhelming majority of women being able to report when they experience it. Mean OL ranges from 50 to 73 h postpartum across studies and from 1 to 148 h postpartum within studies. The wide range detected within samples is fully consistent with the wide within sample LS-II variability as determined by BMB or MV. Studies have identified similar risk factors for delayed LS-II, such as labor and delivery stress, primiparity and insulin-dependent diabetes mellitus, regardless of marker used (i.e., OL, MV or BMB). The correlation between OL and MV (r = -0.60) is of similar magnitude to that between OL and BMB (r = 0.50) and that between BMB and MV (r = 0.47-0.69). In conclusion, OL is a valid clinical indicator of LS-II. This has public health relevance because studies have identified delayed OL (i.e., >72 h postpartum) as a risk factor for shorter breastfeeding duration and for greater infant weight loss by d 3 postpartum. Multidisciplinary studies are needed to standardize the definition of OL and to confirm its validity in different sociocultural contexts. |
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