(ShareCast News) - Private hospital group Spire Healthcare reiterated its guidance for 2015 on Friday and said it expects revenue for this year to grow.The company continues to expect full year revenues in the range of £882m to £888m and earnings before interest, taxes, depreciation and amortisation margin of around 18%.As far as private medical insurance claims are concerned, it expects to maintain its current market share of the PMI market overall.In Self Pay, the group anticipates continued strong growth as NHS waiting lists and further rationing takes place.It noted that Monitor - the sector regulator for health services - and NHS have proposed a 1.1% increase in the tariff for the 12 months beginning 1 April for all services paid for by national tariff, including those provided by the private sector.This uplift, after taking into account an additional proposed adjustment for medical indemnity, is expected to have a positive impact across the company's NHS services of around 1.5%.Assuming the revised tariff is concerned, Spire expects full year revenue for the 2016 financial year will rise by around 3% to 5% compared with 2015.