The associations between sex composition of a woman's children and the probability that she will have additional children were similar in unadjusted models (not shown) and adjusted models (Table 6) across parities, suggesting that the relationships are largely independent of socioeconomic factors.
At most parities, replacement of deceased children is a significant, motivator of parity progression.
It may be mentioned again that only ever married (or currently married) women were included for the estimation of mean ages at parities. In other words, the proportion of unmarried women in age groups which form the basis to compute Singulate Mean Age at Marriage have not been taken into account for this purpose.
For ever married women, there was an increase in the mean ages at the first two parities in the age span of 15 to 34, but from age 35 and above, slight declines are indicated.
Effects of the dietary energy level on the blood urea nitrogen concentration in the blood of sows over three consecutive parities (* p<0.1).
Effects of the dietary energy level on the glucose concentration in the blood of sows over three consecutive parities (* p<0.1).
Within India, the odds of contraceptive use varied by region and tended to be higher in magnitude in North India than in the other regions (especially South India and West Bengal, where the association was not statistically significant for some or most parities).
Multinomial logit models revealed that at most parities in all three countries, the relative risk ratio for using a modern contraceptive method (relative to no use) was higher for women with sons than for women without sons (Table 7).
Genetic correlations in these studies ranged from 0.49 to 0.93 between NBA1 and NBA in later parities, 0.52 to 0.78 between LBW1 and LBW in later parities, 0.17 to 0.81 between NPW1 and NPW in later parities, and 0.66 between LTWW1 and LTWW in later parities [5-7,9,26].
This indicated that the higher replacement rate for L, Y, and crossbred sows, the lower the feasibility of choosing sows with low EBV for reproduction traits in the first parity but low EBV for sums of reproduction traits in the second and later parities.
Traces of heritabilities of milk BHBA for parities
1 and 2 were high at the beginning and end of the lactations, while the traces for parity 3 were high between 130 and 200 DIM (Figure 3).
. Because there were many ties, a logit model for discrete-time data was used (Allison, 2010).