The teenage daughter of a missing Renfrewshire woman has appealed for information on the anniversary of her disappearance.

Alannah McGrory, 18, whose mother Patricia Henry has not been seen since November 2017, said she did not want another Christmas to go by without her.

Patricia, known to her friends as Patti, lived in Paisley before moving to Girvan, in Ayrshire, in October last year.

READ MORE: Police re-appeal for information on missing woman

A month later, contact with family and friends stopped – and previous appeals for information have found no trace of her.

Detectives say they cannot rule out the possibility that 46-year-old Patti may have come to harm.

Alannah said: "One Christmas has already passed without my mum being here and we don't want another to go by without her.

"We really miss her so much and are desperate to hear from her.

"We are so worried about her and, every day that passes with no word or contact from her, we become even more anxious.

"If anyone has any idea where my mum could be or has seen her since she went missing, please let the police know."

The Gazette: Alannah McGrory age 18, the daughter of missing Paisley woman Patricia Henry pictured at Mill street Police station, Paisley where she made an appeal for information about her mother who has been missing since 13th November 2017. .. Photograph by Colin M

Alannah McGrory made an impassioned plea for help (pic from previous appeal) 

Patti is described as white, 5ft 10ins tall, slim and with collar-length brown hair.

She has a tattoo of two clouds with a red rose and the word 'Patti' on her left arm.

Detective Chief Inspector Suzie Chow said: "Despite the passage of time, I am still appealing for anyone who has any knowledge of Patricia's current whereabouts to get in touch.

"Although I have said before we cannot rule out that she may have come to harm, I am still treating Patricia as a missing person.

"My thoughts are very much with her family and friends, who are understandably incredibly anxious to hear from her.

"We would appeal for anyone who knows Patricia, or has any idea where she may have gone, to come forward and contact us.

"We would also appeal to Patricia herself to come forward and let her family or the police know she is okay."

READ MORE: Police cordon off street in search for missing woman Patricia Henry

Specialist search teams have previously scoured a property in Burnfoot Crescent, Glenburn, belonging to a male friend of Patti’s, in a bid to trace her.

DCI Chow also confirmed officers have traced the occupant of a white van seen travelling between Paisley and Girvan, which had been the subject of a previous appeal for information.

Anyone who has information about Patti's disappearance is asked to call the police via 101 or ring Crimestoppers anonymously on 0800 555 111.