(Reuters) - InterContinental Hotels Group said on Tuesday its full-year room revenue grew as more people checked into its 380 hotels in the Greater China region.The Denham, UK-based owner of brands such as Crowne Plaza, Holiday Inn and InterContinental said revenue per available room grew 2.5 percent in the twelve months to Dec. 31, slightly lower than the 2.7 percent growth reported a year earlier. The group posted a 7.7 percent rise in 2018 reported operating profit to $816 million, higher..