The phrase "a significant sex difference" is correct and usable in written English.
It can be used in contexts discussing research findings, studies, or observations related to differences between sexes in various fields such as psychology, biology, or sociology.
Example: "The study revealed a significant sex difference in cognitive abilities, with males performing better in spatial tasks."
Alternatives: "a notable gender disparity" or "a marked difference between sexes".
There was no significant difference in the number of subjects seropositive to PV1 and PV3 between the different sexes (P > 0.05); however, there was a significant sex difference for PV2 (P = 0.04) (Table 1).
We observed a significant sex difference favoring males (.31 standard deviation; p =.004).
In addition, there was a significant sex difference in nestin+ expression with females showing approximately 8 13% higher nestin+ expression compared to the males.
A significant sex difference was observed in RS in C4 and C5 at stage A and in RS in C4 at stage B (p < 0.05).
Based on those studies one could have expected a significant sex difference with a larger amount of nerve fibers co-expressing 5-HT3A receptors and NaV1.8 sodium channels in women.
We observed a significant sex difference in the amplitude of the nicotinic currents elicited in layer VI neurons during the first postnatal month.
A significant sex differences in MMP depolarization was detected between MVSMC and FVSMC 72 h after the end of UVB exposure (p < 0.05).
At the final follow-up, 18 months after onset of treatment, men reported a mean of 2.5 (SD 2.4) somatic symptoms and this was the only time point showing a statistically significant sex difference, with women reporting a mean of 3.3 (SD 2.6) (p = 0.024).
The sex difference in the KOP receptor component of etorphine analgesia was an interesting finding, given that we did not observe a statistically significant sex difference in U50,488H antinociception, although evoked withdrawal responses tended to be lower in females (Supporting Information Fig. S1).
In nine of the twenty-five studies there was a statistically significant sex difference in the chlamydia prevalence.
There was a statistically significant sex difference of the perception of risk of STIs and HIV with more females reporting to have a high risk compared to males.
