The phrase "a difference in number" is correct and usable in written English.
It can be used when discussing variations or discrepancies in quantities or counts between two or more items or groups.
Example: "There is a significant difference in number between the two survey responses, indicating varying opinions among the participants."
Alternatives: "a variation in quantity" or "a discrepancy in count".
Only 1 study revealed a difference in number of transfused patients.
However, there was a difference in number of appointments, with the patients in the US having more appointments.
Up till now, it has been unclear whether there is a difference in number of complications among the subcategories of laparoscopic total hysterectomy and laparoscopic subtotal hysterectomy (LSH).
Because our primary endpoint was to detect a difference in number of analgesics consumed per month by patients between the two groups (see introduction), we divided G/G from non-G/G subjects and calculated the monthly mean of drug consumption: 21 non-G/G subjects consumed meanly 45.57 doses versus 32.93 doses of 15 G/G subjects (t = 1.887, P = 0.07, Cohen's d = 0.65).
There was no evidence of a difference in number of responders after three vaccinations between group 1 and 2 (Fisher's exact test p = 0.64).
Nonetheless, this caused a difference in number of animals used in GWAS for TNB and varTNB.
Secondly, there was a difference in numbers between the groups, with a larger number of non-elite junior players being preferred.
However, when treatment was longer than 12 weeks, there was no evidence of a difference in numbers of patients leaving the trials (Birks & Harvey 2003).
Also, participants below the absolute risk threshold who have elevated BP may still be started on treatment, meaning less of a difference in numbers started on treatment and events prevented.
UFM has shown that samples with different flexural properties exhibit a difference in the number and distribution of rubber particles present in the skin region.
