The number of people engaging with US president Donald Trump on Twitter has gradually declined, according to a new analysis.

One reason may be Mr Trump's recent show of restraint on Twitter - or it could be that the novelty of his tweets has faded a bit.

The Associated Press and the media analytics non-profit body Cortico took into consideration Mr Trump's Twitter feed and the users who read, react and propel his words throughout the Twittersphere.

They found that men are more likely than women to retweet Mr Trump. Left-leaning users are more likely than right-leaning ones to reply - often with commentary.

Mr Trump's social media director, Dan Scavino, said Twitter remains "an incredible way" for the president to communicate directly with the American people.