Simply put, IV is a randomly occurring variable associated with the administration of treatment but is not related to outcomes.
The time variable for the Cox model was defined as time between the date of metastasectomy – the latest occurring variable in our analysis – and the time of death or latest follow-up.
The increased power to detect strain-specific differences means that DGE could be a useful tool to examine naturally occurring variable phenotypes, or strains that have been selected for particular phenotypes, and to understand the pathways involved in these processes.
There are also naturally occurring variables, specifically the age and sex of the patient.
Apoptotic treatment induced deep morphological alterations, which occurred at variable time intervals.
Other limited outbreaks have occurred, causing variable human disease (Table 3) [ 52, 58].
A widespread implementation of resident-as-teacher courses in developed countries' medical schools has occurred, with variable results.
NH occurred in variable degrees by 5 weeks after establishing a fistula, and by 16 weeks, such NH was progressive and pronounced with abundant extracellular matrix.
The dependent variable was whether HFRS occurs; independent variables were landscape elements (elevation, NDVI, precipitation, annual cumulative temperature and LST, type of soil, and land use).
It is important to note that these cancers occur at variable incidences in different regions of the world, and that not all of these cancers are a direct consequence of tobacco use.
