Also, because they used age at
menarche as an indicator of pubertal timing, the investigators said they could not capture the social, emotional, or hormonal processes present earlier in puberty.
that reported children aged 3-4 years with higher vegetable protein intake experienced
menarche or voice break approximately 0.5 years later [35].
Early
menarche was defined as age at
menarche younger than or at 12 years old and late
menarche as older than or at 17 years old.
Data about
menarche, menopause, pregnancy, and family history of breast cancer was retrieved from the questionnaires that each patient was required to fill before the scan.
When analyzing the relationship between the age of
menarche and early first sexual intercourse, Cezimbra (11) concluded that the first sexual intercourse usually occurs after
menarche and that the later the
menarche, the later the first sexual intercourse.
'Parents usually worry about
menarche being too early or too late for their preteens.
The mean age of
menarche was 12.58 ([+ or -] 1.15) years.
The aim of this study was to determine the mean age of pubertal stages of breast development and
menarche, and to determine the influence of nutrition and ethnicity on pubertal onset, in primary school girls living in Sokoto, Nigeria.
Demographic details including age, age at
menarche, parity and cycle are shown in table-I.
The
menarche age, age at first birth was significantly higher, the mean menopause age was lower in PG than CG (p0.05).
Key clinical point: Earlier
menarche paired with poor parent supervision is associated with higher alcohol abuse rates.
Lead researcher Dr Alison Behie said reaching
menarche at an earlier age increases the number of ovulation cycles a woman will have in her life, and puts her at greater risk of developing reproductive cancers possibly due to increased exposure to hormones such as oestrogen.