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. 2022 Feb 28;60(1):63–69. doi: 10.5114/reum.2022.114108

Table I.

Demographic and clinical features of patients (n = 80) with statin-induced necrotizing autoimmune myopathy

Data description Variable Numerical descriptions (n) Percent (%)
Age Mean 65.9
SD 9.4
Gender Male 49 61.3
Female 31 38.8
Symptoms duration Mean 3.48
SD 6.11
Statins exposure Atorvastatin 61/71 85
Simvastatin 7/71 10
Rosuvastatin 3/71 4
Not reported 9
Weakness severity Mild 4 5
Mild-moderate 7 8.8
Moderate 16 20
Moderate-severe 10 12.5
Severe 8 10
N/A 34 42.5
Mild-severe 1 1.3
Total 80 100
Weakness distribution UE + LE 52 65
UE + LE + oropharynx 2 2.5
UE + neck 1 1.3
UE 3 3.8
LE 15 18.8
Distal extremities 1 1.3
Oropharynx 1 1.3
N/A 5 6.3
Total 80 100
Symptoms Dysphagia 21 26.3
Dysarthria 1 1.3
Dyspnea 4 5
Palpitation 0 0
Chest pain 0 0
Myalgia 33 41.3
Raynaud 0 0
Weight loss 5 6.3
Skin 5 6.3

LE – lower extremity, N/A – not associated, SD – standard deviation, UE – upper extremity.