Results 71 to 80 of about 51,780 (284)

Kin influences on fertility in Thailand: Effects and mechanisms [PDF]

open access: yes, 2013
It has been suggested that human mothers are cooperative breeders, as they need help from others to successfully raise offspring. Studies working under this framework have found correlations between the presence of kin and both child survival and female ...
Sear, Rebecca, Snopkowski, Kristin
core   +1 more source

Age at First Pregnancy, Adult Weight Gain and Postmenopausal Breast Cancer Risk: The PROCAS Study (United Kingdom)

open access: yesInternational Journal of Cancer, EarlyView.
An early first pregnancy is protective against postmenopausal breast cancer. However, pregnancy is also a key contributor to weight gain, and adult weight gain increases postmenopausal breast cancer risk. This prospective cohort study quantified the combined effect of adult weight gain and age at first pregnancy on postmenopausal breast cancer risk ...
Lee Malcomson   +7 more
wiley   +1 more source

Age at menarche and risk of colorectal adenoma [PDF]

open access: yesThe Korean Journal of Internal Medicine, 2019
Background/Aims Limited data are available regarding the association between age at menarche and the risk of colorectal adenoma. Therefore, we aimed to evaluate the relationship between reproductive factors including age at menarche and the risk of ...
Nam Hee Kim   +5 more
doaj   +1 more source

Associations of Outdoor Air Pollution With Incidence of Cancers Other Than Lung Cancer in a Large US Prospective Cohort

open access: yesInternational Journal of Cancer, EarlyView.
Associations between outdoor air pollution and cancers other than lung cancer remain unclear, particularly in the context of tobacco use. Here, the authors assessed possible links between ambient air pollutant exposure and incidence of 20 non‐lung cancers among adults followed over a 25‐year period in the United States.
W. Ryan Diver   +4 more
wiley   +1 more source

Control of Age at Menarche

open access: yes, 2021
The menarche stands as our primary indicator of the onset of sexual maturity in females. The age at which this milestone occurs has therefore become one of the major parameters of maturation rates among individuals, or among groups, and the wide range of
Johnston, Francis E
core  

Inverse association between obesity and intestinal endometriosis: Findings from a cross‐sectional study

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective This study evaluates the association between obesity and the presence of bowel endometriosis in patients undergoing surgery. Methods A retrospective cross‐sectional observational study was conducted with patients treated between September 2023 and December 2024, at a specialized endometriosis outpatient clinic of a tertiary hospital ...
Tereza Carolina Fonseca Corrêa   +1 more
wiley   +1 more source

Age at Menarche Among Iraqi Adolescent in Baghdad 2017

open access: yes, 2022
Background: Menarche is a biological trait affected by several factors (genetic parameters, socioeconomic conditions, general health, and lifestyle, nutritional status, seasonality, physical activities, and level of education).
Al-Kaseer, E. A. (Eman)   +1 more
core  

The importance of gene polymorphism in familial inheritance of endometriosis

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective The study aimed to investigate familial transmission patterns in women with endometriosis by generating a customized single‐nucleotide polymorphism (SNP) array. Methods Patients aged 18–45 who were diagnosed histopathologically with endometriosis were included in the study.
Hale Goksever Celik   +4 more
wiley   +1 more source

A causal examination of the correlation between hormonal and reproductive factors and low back pain

open access: yesFrontiers in Endocrinology
BackgroundThe relationship between hormonal fluctuations in the reproductive system and the occurrence of low back pain (LBP) has been widely observed. However, the causal impact of specific variables that may be indicative of hormonal and reproductive ...
Dafu Chen   +18 more
doaj   +1 more source

A study of menarche as it relates to age and certain geographical factors [PDF]

open access: yes, 1969
The present investigation was concerned with the study of menarche and its relation to demographic factors and religious awakening. The source of information about menarche was also considered. Five hypotheses were postulated.
Fremont, Gertrude Mae   +1 more
core  

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