High prevalence of precocious menarche in Puerto Barrios, Guatemala
2019
Background: Age of menarche is variable between women with a median age of 14 years old worldwide, and averages ranging from 12-13 years old in developed countries to 15-16 years old in low and middle-income countries. Precocious menarche, occurring before age 11, is rare, with a prevalence of 1.4 to 2.3% in most worldwide populations. Precocious menarche is poorly understood but is associated with early puberty and is a risk factor for pre-teen birth. In studying HPV prevalence in Latin America, we identified a community with a very high rate of precocious menarche.
Objective(s): Describe the patterns of precocious menarche in Guatemala.
Study Design: Reproductive histories were collected from 3385 cancer-free women at the time of routine Pap smear from 4 sites in Guatemala including hospitals in Guatemala City and Puerto Barrios, Izabal. Statistical analyses included determination of the age-specific prevalence of menarche and linear regression to determine the effect of year of birth, study site, number of births and miscarriages, on the age at menarche.
Results: Compared with a low prevalence of precocious menarche observed in Guatemala City (3.1%, 88/2834), we observed a high prevalence of precocious menarche in the city of Puerto Barrios, Izabal, Guatemala (88%, 486/551). We observed a high prevalence of precocious menarche in Puerto Barrios across all age groups. In contrast in Guatemala City, the median age at menarche declined from the age of 14 in 50-60-year-old women to 13 in women under 40 years of age. Hospital records show that the occurrence of both miscarriage and pregnancy under age 14 is substantially higher in Izabal. In addition, the main public hospital in Puerto Barrios accounts for a high fraction of the early pregnancies and miscarriages seen in Guatemala.
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