It is important to note that ‘the selleck screening library number of days lived’ were recorded as ‘completed days’, i.e. those who died Inhibitors,Modulators,Libraries on their birthday have 0 days on their record, those who died the very next day have 1 day on their record, etc. Assuming a uniform distribution of deaths within the calendar day, this (again) leads to the substitution of an average of 0.5 days lived for those who died on their birthday, an average of 1.5 days for those who died the following day, etc. These averages on a daily basis were duly taken into account. Graphs of the survival functions Inhibitors,Modulators,Libraries within the year of birth are pictured, both on a linear scale and a log scale, the latter being more apt to picture small differences between subgroups (Figure (Figure22). Figure 2 Survival curves.

Survival curves for the deceased in their year of birth, Flemish Region (Belgium), by sex, 2008. The mean proportion of the calendar year lived by the deceased in the year of birth (k1) was derived Inhibitors,Modulators,Libraries from their mean survival time (in days). Likewise, the mean proportion of the calendar year lived by the deceased in the year after the year of birth yet before the first anniversary (k2), was derived from their mean survival time since birth (in days). Differences in proportions were tested with the usual independent samples t-test, assuming the validity of the central limit theorem for large samples. Only the P-value is reported. The usual level of significance is adopted (�� = 0.05). Results Infant mortality rates Between 1999 and 2008, the number of registered live births per annum for mothers having their residence in the Flemish Region roughly ranged between 60,000 and 70,000, with boys slightly outnumbering girls (sex ratio close to 1.

05). The lowest number of births was recorded in 2002 (60,161), the highest in 2008 (69,276). Figure Figure33 Inhibitors,Modulators,Libraries shows the probability of infant mortality by gender, i.e. the probability among registered live births of dying before the first anniversary. A slight though not steady decrease is Inhibitors,Modulators,Libraries observed over the years: from 5.4 in 1999 to 4.6 deaths per thousand live births in 2008 (-14%) for boys, and from 4.6 in 1999 to 3.5 per thousand live births in 2008 (-24%) for girls. Figure 3 Probability of infant mortality. Probability of infant mortality in the Flemish Region (Belgium) according to the year of birth, by sex, 1999-2008.

In addition, the figure displays (a) the probability of dying in the year of birth and (b) the probability of dying in the next year before the infant’s first anniversary. This clearly shows that the large majority of those who died before their first anniversary actually did so in their year of birth. The average share for all GSK-3 observation years is 85% in males and 87% in females (P = 0.68). The probability of dying in the year of birth decreases from 4.6 to 4.0 per thousand live births (��) between 1999 and 2008 in boys and from 3.8 to 3.