We modelled both progression to marriage and first birth because in post demographic transition populations, where marriage is a less important factor for predicting first birth, age at first birth is a commonly examined outcome.
These effects are number of household members, number of children at age five and under in a household, age of respondent at 1st birth, age at first sex, total children ever born, age of respondent and birth order number.
We created a matched sample by matching biologics and nbDMARDs subjects by date of birth, age at first use of DMARDs, gender, concomitant comorbidities, duration of disease, and starting date of study, as described below.
The result shows that age of respondent at 1st birth, age at first sex, total children ever born, birth order number and age of respondent had non-linear significant effect on child mortality in Ethiopia.
The figures suggest that age of respondents, number of household members, number of children at age five and under in a household, age of respondent at 1st birth, age at first sex, total children ever born and birth order number effects all depart dramatically from linearity.
Controls were matched to cases by year of birth and BRCA1 mutation and were similar to cases with respect to potential ovarian cancer risk factors including year of birth, age at first live birth, age at menarche, BMI, parity, breastfeeding, and smoking.
Genetic association analyses (described below) were adjusted for study site, age, body mass index, hormone therapy, oral contraceptive use, number of live births, age at first live birth, and population structure principal components which accounted for the possibility of population stratification using an approach similar to that described previously [31].
The potential effect modifiers considered were age at menarche, ever having had a live birth, number of live births, age at first birth and BMI.
In the Italian case control study, the ORs of NHL by number of pregnancies, abortions, births, age at first birth, and time since last birth were all close to unity (Tavani et al, 1997).
We evaluated several exposure categories related to reproduction and endogenous hormones, including age at menarche, number of live births, age at first live birth, history of breastfeeding and did not find significant associations with meningioma (Table 4).
We also assessed the potential confounding effects of a range of other variables, including number of births, age at first birth, age at menopause, surgical menopause (bilateral oophorectomy), menopausal symptoms, BMI (weight kg)/height (m)) one year before data collection, height, socioeconomic status, smoking, and ever use of medium potency estrogen-progestin therapy.
