The phrase "were elevated compared to" is correct and usable in written English.
You can use it to describe a comparison between two or more things. For example: "Average temperatures this summer were elevated compared to last summer."
The study aimed to determine whether (1) asthma symptom prevalences were elevated compared to comparable areas in Cape Town and (2) whether there was an association between asthma symptom prevalences and the derived exposure metric.
During the clamp, both plasma insulin and C-peptide levels were elevated compared to basal levels across all groups.
Dissolved phosphorous concentrations in the lakebed were elevated compared to onshore groundwater, while nitrate concentrations were lower, indicative of a highly reactive sediment-water interface.
Similarly, for the 5-week group, responses on the ETOH lever after the second and third deprivation were elevated compared to responses following the first deprivation during sessions 1 4 of re-exposure, and ethanol lever responses were greater following the third deprivation compared to responses following the first and second deprivations for sessions 1 5 of re-exposure.
Dissolution rates for SON68 in the presence of the claystone were elevated compared to those obtained from flow-through experiments conducted with SON68 without claystone in silica-saturated solutions at the same temperature and similar pH values.
For the 2- and 8-week groups, responses on the ETOH lever during sessions 1 3 of re-exposure were greater after the second deprivation than the first deprivation, and responses after the third deprivation were elevated compared to responses following both the first and second deprivations for sessions 1 5 of re-exposure (Figure 2).
Our new compilation and probabilistic treatment reveals that for the last ∼420 Myrs, CO2, on the whole, has been elevated compared to pre-industrial values (278 p.p.m.).
For the 5-week group, responding on the ETOH lever was elevated compared to baseline responding for sessions 1 4 of re-exposure (F7,189=41.6; p<0.0001).
During the second re-exposure cycle (Figure 2), responding on the ETOH lever by the 2- or 8-week groups was elevated compared to baseline responding for sessions 1 3 of re-exposure (F's7,63>50.7; p's<0.0001).
Nitrogen (0.4 0.8%) and sulfur (0.2 0.3%) are elevated compared to many other types of biomass, with the large variation in N probably related to irrigation water source and fertilization practices.
They conclude that sympathetic tone in migraine patients is elevated compared to patients with episodic tension-type headache.
