Yes, for the practical nursing profession in many provinces, 90% of new graduates are probably only getting casual employment.
We constantly hear from those graduates that significant factors include: one, the health authorities not receiving funding for the number of full-time equivalent positions to allow them to make a position permanent or, say, temporary, for one or two years; and two, the high amount of sick time. If a person is a permanent full-time employee, then that's an added benefit with a cost that the employer has to absorb; whereas for practical nurses, depending on what union they're in, if they work as a casual employee, they might not get those same sick benefits, so it's not as big a financial burden for the employer.