Sentence examples for between two groups were from inspiring English sources

Comparisons between two groups were performed using Student's t-test.

The differences between two groups were statistically significant.

Differences between two groups were examined for statistical significance by the Student's t-test.

Comparisons between two groups were made using an unpaired t-test.

Comparisons of preproenkephalin mRNA level between two groups were analyzed using the Student's t-test.

Differences between two groups were assessed using unpaired two-tailed Student t-test.

The differences between two groups were tested using Student's two-tailed t-test.

The rates of overall side effects between two groups were not found statistically different (P=0.84).

Statistical comparisons between two groups were conducted by a Student t test.

Comparisons between two groups were performed using Student's unpaired two-tailed t-test or paired t-test.

Differences in the age, gender, and diagnosis between two groups were not statistically significant.