'time strata' is a correct and usable phrase in written English.
It is a term used to describe the distribution of objects or events through time. For example, "By examining the time strata in the sedimentary layers, geologists were able to determine the age of the rock formation."
Patients were stratified according to timing of their operation: time strata (TS) 1: 1995–2000, TS 2: 2001–2006 and TS 3: 2007–present.
Fourth, to assess the impact of choice of time strata, we analysed the data using 14 day (rather than calendar month) time strata to define case and control days.
Likewise, if one could show that human and dinosaur remains truly did occur in the same time strata of the fossil record, one would have powerful proof against the thinking of modern evolutionists.
Causes of death for persons in all four time strata are presented in Table 3.
In brief, VE was estimated with a logistic regression model allowing a different offset in each age × time strata.
To assess if our findings could have been affected by the decision to stratify follow-up time by month, the analyses were repeated with different sized time strata.
Reading a paper like this is not the only way to understand the lost past life of a city, but no other way will enclose you so completely within one time stratum's universe of miscellaneous possibility.
Random-effects Poisson regression was used to calculate protective efficacy in each time stratum.
Incidence rate in a given time stratum was compared between trial arms using a poisson regression model with a cluster-level random effect.
In a time-stratified case-crossover design, each case's controls are selected from the same time stratum as the case, and seasonal effects and long-term time trends are assumed to vary inconsequentially within each time stratum.
Within each time stratum the observed SMRs for each age group were compared using an exact test.
