The Office of Fair Trading has claimed health insurers have improved their sales literature following two critical reports. It said last week that the improvements would help consumers to compare products. But it said insurers were still failing to tell consumers about average price increases over five years and had failed to implement some of its recommendations to clarify the extent of critical illness cover and the circumstances in which it can be terminated. OFT director John Bridgeman said the improvements showed that 'after an unwilling start, the industry is beginning to adopt a greater sense of responsibilty towards its customers.'