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Table 3 Cases of COVID-19 in French children with Prader-Willi syndrome between March 2020 and January 2021

From: Paradoxical low severity of COVID-19 in Prader-Willi syndrome: data from a French survey on 647 patients

Clinical characteristics (n = 13)

 Age (years)

9.6 ± 4.4 [1.9–18]

 Gender (%)

Female 5 (38); Male 8 (62)

 Genetic subtype (%)

Deletion: 8 (62); UPD: 5 (38)

 Body Mass Index (kg/m2)

21.8 ± 10.9

 BMI Z-score

1.3 (-2.1–7.7)

 Obesity (BMI Z-score ≥ 3)

3 (23)

 Type 1 or 2 diabetes

0

 Treated apnea syndrome with nocturnal CPAP (%)

2 (15)

 Hypertension

0

 Congenital heart defect (%)

1 (8)

 Respiratory and/or cardiac failure (%)

0

Living situation at the time of COVID-19 (%)

 

 Living home with family

13 (100)

 Residential group home

0

Treatments at the time of COVID-19 (%)

 

 Growth hormone

13 (100)

 Thyroxine

8 (62)

 Hydrocortisone

1 (8)

 Sex Hormone therapy

1 (8)

 Vitamin D

11 (85)

 Topiramate

1 (8)

 Antipsychotics

1 (8)

COVID-19 diagnosis (%)

 Positive SARS-CoV-2 RT-PCR test

6 (46)

 Positive IgG against SARS-CoV-2 after infection

1 (8)

 Suspected diagnosis*

6 (46)

 Plaints or clinical signs (%)

10 (77)

 Asthenia

5 (38)

 Fever

4 (31)

 Cough

3 (23)

 Muscle pain

1 (8)

 Chest tightness

1 (8)

 Headache

4 (31)

 Diarrhea

2 (15)

 Not eating

2 (15)

 Anosmia

1 (8)

 No clinical sign or plaints

3 (23)

Evolution of symptomatic patients (%)

 

 Hospitalization

0

 Death

0

 Complete recovery

9 (90)

 Time to complete recovery (days)

7.7 ± 5.9 [1–20]

 Partial recovery

1 (persistent asthenia)

  1. Results are expressed as mean ± SD [range] for continuous variables and as number (percentage) for categorical variables
  2. BMI body mass index, UPD uniparental disomy, CPAP continuous positive-airway pressure, RT-PCR Reverse Transcriptase Polymerase Chain Reaction, IgG immunoglobulins G
  3. *Suspected diagnosis: reporting signs and symptoms of COVID-19 and close contact with a confirmed COVID-19 case in the 14 days prior to onset of symptoms (no RT-PCR test during infection and no assessment of antibodies against SARS-CoV-2 after infection)