The phrase "provincial variations" is correct and usable in written English.
It can be used when discussing differences or distinctions that occur in various provinces or regions, often in the context of language, culture, or practices.
Example: "The study highlighted the provincial variations in dialects spoken across the country."
Alternatives: "regional differences" or "local variations."
[ 53] Regional or provincial variations in treatment practices and access to radiotherapy have been found.
Provincial variations in kidney cancer incidence rates likely reflect regional differences in the prevalence of risk factors.
The provincial variations in the leading causes of death indicate the importance of targeted interventions at sub-national level.
However, no data confirming the achievement of the 2011 target or any provincial variations in the rate were presented.
Zambia has an HIV prevalence of 14.3 percent, with provincial variations ranging from 7 percent in Northern Province to 21 percent in Lusaka Province.
The provincial variations in the leading causes of death indicate the importance of targeted interventions at provincial, district and local level.
Since employees' earnings are intrinsically determined by their work units' profit performance, size-earnings relation is inevitably disturbed by such provincial variation.
Thus, it is not surprising that the zero-order correlation between size and earnings can be established now, even without accounting for provincial variation.
Instead, in Italy, some key vertebrate tick hosts, especially red deer and roe deer, have undergone equally dramatic, but more heterogeneous changes in density since the 1950s due to regional and/or provincial variation in the creation of parks and/or harvesting pressure.
Contraceptive uptake rate was low overall with wide inter provincial variation.
Provincial variation in maternal mortality was substantial, especially among the provinces from different regions.
