Studies | Population | Gray-scale | Result |
---|---|---|---|
Arbault et al. (2017) [26] | PsA | Nail bed thickness Mean (SD): 0.5 mm (0.04) Nail plate thickness Mean (SD): 2.0 mm (0.42) | – |
Fassio et al. (2017) [28] | PsO | Nail bed thickness Mean (SD): 0.25 mm (0.05) Nail plate thickness Mean (SD): 0.063 mm (0.011) | Healthy controls had lower nail plate and nail bed thickness. |
PsA | Nail bed thickness Mean (SD): 0.25 mm (0.04) Nail plate thickness Mean (SD): 0.065 mm (0.014) | ||
Controls | Nail bed thickness Mean (SD): 0.22 mm (0.02) Nail plate thickness Mean (SD): 0.051 mm (0.006) | ||
Acquitter et al. (2016) [30] | Patients with PsO with nail disease | Nail matrix thickness Median (SD): 1.94 mm (0.69) | Patients with PsO with nail disease presented with significantly higher nail matrix thickness than patients with scalp PsO and/or inverse PsO (p < 0.01). |
Patients with scalp PsO and/or inverse PsO | Nail matrix thickness Median (SD): 1.77 mm (0.54) | ||
Marina et al. (2016) [31] | PsO | Nail bed thickness Median (IQR): 1.88 mm (1.71–2.03) Nail plate thickness Median (IQR): 0.86 mm (0.60–1.14) | Healthy controls had a statistically significant lower nail plate thickness than patients with PsO (p < 0.0001). No significant differences were observed in nail bed thickness variability among groups (p = 0.4621). |
Controls | Nail bed thickness Median (IQR): 1.89 mm (1.78–2.00) Nail plate thickness Median (IQR): 0.63 mm (0.59–0.67) | ||
Mendonça et al. (2014) [34] | PsA | NGS Mean (SD): 0.48 mm (0.50) | Healthy controls had lower NGS than patients with PsA. |
Controls | NGS Mean (SD): 0.00 mm (0.00) | ||
Aydin et al. (2012) [37] | PsO | Nail thickness Median (range): 0.56 mm (0.3–1.9) | Healthy controls had slightly lower NGS than patients with PsO. |
Controls | Nail thickness Median (range): 0.5 mm (0.3–0.6) | ||
Gisondi et al. (2012) [38] | PsO | Nail plate thickness 70 patients (50%) | – |
Haddad et al. (2012) [39] | PsO | Nail bed thickness Mean (SD): 16.0 mm (2.9) Nail matrix thickness Mean (SD): 17.5 mm (2.9) | Comparing the three groups, patients with PsO and PsA presented with statistically significant higher values of nail bed thickness and nail matrix thickness than controls (p < 0.0001). Comparing patients with PsO and PsA, patients with PsO presented with a significantly lower nail matrix thickness than patients with PsA (p = 0.002). No statistically significant differences were observed in nail bed thickness among those groups (p = 0.81). |
PsA | Nail bed thickness Mean (SD): 15.9 mm (3.0) Nail matrix thickness Mean (SD): 18.8 mm (3.0) | ||
Controls | Nail bed thickness Mean (SD): 14.1 mm (1.2) Nail matrix thickness Mean (SD): 15.8 mm (0.92) |