LONDON : Women in their 40s and 50s appear more at risk of long-term problems following discharge from hospital after Covid-19, with many suffering months of persistent symptoms such as fatigue, breathlessness and brain fog, two UK studies found on Wednesday.One study found that five months after leaving hospital, Covid-19 patients who were also middle-aged, white, female, and had other health problems such as diabetes, lung or heart disease, tended to be more likely to report long-COVID symptoms."Our study finds that those who have the most severe prolonged symptoms tend to be white women aged approximately 40 to 60 who have at least two long term health conditions," said Chris Brightling, a professor of respiratory medicine at Leicester.