The phrase "across multiple ages" is correct and usable in written English.
It can be used to describe something that spans or is relevant to various time periods or generations.
Example: "The themes of love and loss resonate across multiple ages, making the story timeless."
Alternatives: "throughout different eras" or "over various generations".
Statistical analysis (GraphPad Prism software, www.graphpad.com, or Excel, www.microsoft.com) across multiple ages was assessed using one-way anova with Bonferroni's multiple comparisons post-test; between ages, using a two-tailed unpaired Student's t-test; and between neuraminidase injected and controls, using a two-tailed Student's t-test.
In contrast, twin analyses readily extend to multivariate questions, as is evident from the longitudinal study of reading across multiple ages (e.g., Christopher et al., 2013; Harlaar et al., 2007a) and analyses of the relationships among print exposure and multiple facets of reading (e.g., Martin et al., 2009).
In other systems, the relative importance of these questions have led to some projects sequencing only developing individuals [ 32], across multiple ages (e.g. [ 6]), across multiple eco-types (e.g. [ 7]), only specific tissues e.g. [ 33, 34]), or simply more individuals (e.g. [ 8]).
Though studies vary in quality, they generally demonstrate that online mental health care is effective across multiple age groups.
Accumulated clinical experience across multiple age ranges has suggested that the use of an individualized maximum tolerated dose (MTD) will achieve optimal benefit of hydroxyurea treatment.
Higher correlations were seen for diarrhea (R = 0.828 0.926) than for nausea/vomiting (R = 0.729 0.866) across multiple age groups.
A range of heritabilities reflects either the variation in estimates across multiple studies or across multiple age groups within a single study.
Indeed, such complexity is likely higher still when possible strain differences and variation across multiple age levels will be taken into account.
This relatively wide age-range and comparability across age ranges allows us to simultaneously examine results across multiple age groups and longitudinally examine a specific-age group for a relatively long period of time.
Analysis of changes in drug clearance across multiple age groups and drugs was performed using multiple regression techniques as described in a previous analysis of a pediatric pharmacokinetic data set (Ginsberg et al. 2002).
For example, if a concern was expressed about an increase in all cancers, but the investigation assessed multiple sites across multiple age-, gender- or race-specific population subgroups, and reported that only some of the rates were statistically significantly elevated without an overall increase in all cancers, the cluster was not considered confirmed.
