We categorized indicators of exposure (duration, cumulative, intensity) into four levels according to quartiles of their distribution among exposed controls; the lowest level represented the reference group.
Since the relationship between coverage and mortality is not necessarily linear, coverage was either categorized using indicator variables or entered as restricted cubic splines [25].
We categorized each indicator into quintiles (0 4) to standardize the scores and generate the final integrated variable.
Performance of the developed system on the test set categorized by indicator attribute is presented in Table 3.
DevInfo allows users to organize, store, access, display, monitor and analyze standardized human development data in a uniform way, categorized by indicator, time period, geographic area or source.
The following limitations of the study need to be considered: First, due to the given sample size the statistical power to confirm the reported genetic associations with diabetes and to detect associations between the SNPs and the SES indicators – especially in the analyses with categorized SES indicators – is limited.
Based on this reasoning, we categorized four indicators: environmental, morbidity and mortality, vulnerability, and policy (i.e., implementation of adaptation and mitigation programs and activities).
Age was categorized into 18 indicator variables of one-year intervals, with the first group 0 1.5 years old.
In the current study, experts were asked to categorize developed indicators for three cases into three classes (high, medium and low capacity).
The karst disturbance index (KDI) consists of 31 environmental indicators categorized within the five broad categories of geomorphology, hydrology, atmosphere, biota, and culture.
