It had a mean duration of 24 months (1 60 months) and was the main symptom in 13 patients.
The median duration of regression period was 6 months (mean duration of 14 months), ranging from 3 to 50 months.
Complete clinical follow-up for survival analysis was available for all patients, with a mean duration of 75.7±44.4 months (median 80 months; range 2 159 months).
The duration of follow up ranged from four months to eight years, with a median duration of 23 months and a mean duration of 27 months.
These also provide loans to members for durations ranging from 3 to 12 months, with a mean duration of 6 months, and they achieved an average loan recovery of approximately 91%.
This followup extended to a mean duration of 22.9 months (range, 14 to 36 months) until the submission of data.
After acute onset of pertussis, IgA remained above 24 U/ml for a mean duration of 7.2 months, and IgG remained above 27 U/ml for a mean duration of 5.1 months.
At last follow-up (mean duration of 52.2 months), all patients were seizure free and off antiepilepsy drugs.
Weston et al.77 performed intensive endoscopic surveillance in 15 patients with high-grade dysplasia for a mean duration of 36.8 months, during which four developed adenocarcinoma.
Symptoms had a mean duration of 32 months, and included: 100% somatic symptoms, 100% emotional dysregulation, 92.5% disrupted sleep, 82.5% autonomic dysregulation, 75% executive dysfunction, and 66% digestive problems.
Further, in Zhongshan study [41], a serologic window before NPC diagnosis when antibodies levels are raised and sustained was also reported, with a mean duration of 37 months.
