Pay deals have ranged from a wage freeze to rises of 7.5 per cent in recent weeks.
Increases in the minimum wage and shortages of skilled workers in the rail industry, construction and public services have helped boost pay rates in some sectors.
Workers in hotels and engineering firms have had their pay frozen, said the report by analysts Incomes Data Services.
Pay freezes are becoming more common, covering almost one in ten wage reviews undertaken in the past six months.
Long-term deals are becoming more popular across many parts of the public sector, the research found.
Most recent deals were worth between 2 per cent and 3.5 per cent.
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