The census forms did not include any questions regarding sexual orientation, making it impossible to compile data comparing heterosexual and homosexual populations.

There is not much data comparing the effectiveness of the process from one type of practitioner to another.

One can predict the difference in data comparing two substituents using %r:

The most recent data comparing the various bearing surfaces has shown no clinically significant differences in their performance.

There is no published data comparing Abraxane and Taxotere.

Table II shows individual data comparing the two methods of bicarbonate and alkali determination.

This data was in addition to the psychometric data comparing results of the two testing periods.

There is paucity of published data directly comparing the two, but overall mortality in these conditions appears to be very similar.

Statistically valid data comparing non-fatal injuries among cities are not available because no agency keeps such numbers.

Statistical data, especially comparing only two sets of figures, can show an incorrect population trend.