¿Son los niveles de prolactina y estradiol al tercer mes posparto factores predictores del tiempo de aparición de la primera menstruación posparto?: Modelo predictivo mediante análisis de sobrevida / Post suckling prolactin and estradiol levels as predictors of the time of appearance of the first post partum menstruation
Rev. méd. Chile
;
135(4): 419-426, abr. 2007. ilus, tab
Artigo
em Espanhol
| LILACS
| ID: lil-456652
ABSTRACT
Background:
The variability in the duration of lactational amenorrhoea (LA) lead to develop statistical multivariate models to predict the risk of the appearance of the first postpartum menstruation.Aim:
To estimate the probability of recovering the first postpartum menstruation by means of a survival analysis, including hormonal levels and other parameters as predictor variables. Material andMethods:
Eighty one mothers in exclusive breastfeeding until the sixth postpartum month, in whom estradiol, basal and post suckling prolactin were measured at the third post partum month, were studied. The variables that better predict the appearance of the first menstruation between the 3rd and 12th postpartum months, were identified using a Cox model survival analysis.Results:
The median amenorrhea survival time (the lapse when the chance of recovering menstruation is 50 percent) was 209 days from delivery. Dichotomized estradiol and post suckling prolactin were the only significant variables that predicted the return of menstruation, with cutoff points of 190 pmol/ and 2,550 mIU/L, respectively.Conclusions:
Post suckling prolantin and estradiol levels, measured at the third post partum month, are predictors for the time of appearance of the first postpartum menstruation.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Prolactina
/
Período Pós-Parto
/
Estradiol
/
Menstruação
Tipo de estudo:
Estudo prognóstico
/
Fatores de risco
Limite:
Adulto
/
Feminino
/
Humanos
Idioma:
Espanhol
Revista:
Rev. méd. Chile
Assunto da revista:
Medicina
Ano de publicação:
2007
Tipo de documento:
Artigo
País de afiliação:
Chile
Instituição/País de afiliação:
Universidad de La Frontera/CL
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