The fitted curve shown in Figure 1b is derived from the first harmonic for season; the displayed curve was computed by exponentiating the logarithm of the fitted adjusted hazard ratio at mean values of the covariates (entered as means of corresponding dummies for categorical variables): education, region, maternal age, maternal age squared, marital status, maternal smoking, primiparity
, and interaction between region and primiparity
(included because it significantly improved the fit of the model using a likelihood ratio test with p <0.
In the current study primiparity
was noted in 54% of patients with LBW.
The combined outcome of term low birth weight, preterm birth, and abruption was significantly more common among the severe H1N1 cases than controls after study site, age, race, multiples, primiparity
, medical conditions, and smoking were controlled for (31.
Maternal age, rate of primiparity
, delivery mode, maternal anesthesia, gender, gestational age and birth weight of the subjects were similar in all three groups.
13,14,15) In addition several other risk factors have also been identified, which include smoking, obesity, increasing maternal age, primiparity
, multiple pregnancy and previous history of pre-eclampsia.
The known risk factors for pre-eclampsia include primiparity
null gravidity, obesity, renal disease, uterine malformation, fetal hyotrops, elevated serum lipid ratio, chronic smoking, no prenatal care and diabetes.
affect the efficiency of converting energy to offspring production in the guinea pig?
With declining nutritional status, productivity of black bear populations may decrease due to changes in litter size, age at primiparity
, juvenile survival, cub survival and litter frequency (Noyce and Garshelis, 1994).
(one's first pregnancy) has been consistently found to be associated with increased hypertension and other delivery complications, even after controlling for age (Hebert et al.
One small study done in late pregnancy found a significant association between the prevalence of an anxiety disorder, maternal primiparity
, and comorbid medical conditions.
Logistical regression analysis identified the following parameters as independent predictors of vaginal delivery achieved within 24 hours: primiparity
(p < 0.
Traits Wildebeest Kudu Moose Bison Buffalo Adult mass (kg) 165 170 340-450 450 536 Age of primiparity
2 2 2 3 3 % 2 (1) 0.