<unk>  is the main reason for visiting an emergency department in more than 50% of cases, and is present in 30% of family practice visits. Several epidemiological studies have reported widely varying prevalence rates for chronic<unk> , ranging from 12 to 80% of the population. It becomes more common as people approach death. A study of 4,703 patients found that 26% had<unk>  in the last two years of life, increasing to 46% in the last month. A survey of 6,636 children (0–18 years of age) found that, of the 5,424 respondents, 54% had experienced<unk>  in the preceding three months. A quarter reported having experienced recurrent or continuous<unk>  for three months or more, and a third of these reported frequent and intense<unk> . The intensity of chronic<unk>  was higher for girls, and girls' reports of chronic<unk>  increased markedly between ages 12 and 14.
Pain
Malaise
Tenderness 
Itch
Visceral pain
Wellness 
Hyperalgesia
Nociception