Research Article

Mean Platelet Volume and Splenomegaly as Useful Markers of Subclinical Activity in Egyptian Children with Familial Mediterranean Fever: A Cross-Sectional Study

Table 2

Characteristics, clinical findings, and laboratory investigations of FMF patients stratified by the presence of splenomegaly ().

Variable Patients with splenomegalyPatients without splenomegaly value
()()

Male/female21/2229/250.7
Positive consanguinity16 (37.2%)15 (27.8%)0.4
Family history of FMF7 (16.3%)7 (13%)0.8
Age at time of study 8.74 ± 3.598.68 ± 3.290.9
Age at disease onset 4.42 ± 2.814.92 ± 2.680.4
Age at diagnosis 6.81 ± 3.336.58 ± 3.030.7
Duration between the disease onset and diagnosis 2.25 ± 1.931.63 ± 2.070.04
Frequency of attacks/month3.44 ± 3.003.18 ± 2.900.7
Duration of attacks/day2.14 ± 2.071.43 ± 1.500.02
Colchicine duration (years)2.06 ± 1.861.93 ± 1.960.6
Adherence to colchicine21 (48.8%)35 (64.8%)0.1
Abdominal pain42 (97.7%)54 (100%)0.4
Fever37 (86%)50 (92.6%)0.3
Arthralgia34 (79.1%) 43 (79.6)1
Chest pain22 (51.2%)45 (83.3%)0.001
Myalgia18 (41.9%)20 (37%)0.7
Arthritis17 (39.5%)15 (27.8%)0.3
Convulsion6 (14%)1 (1.9%)0.04
MPVa (fL)9.01 ± 2.377.48 ± 1.940.001
ESRb (mm/h)29.37 ± 20.1932.32 ± 19.590.4
CRPc titer (mg/L)13.77 ± 11.3714.89 ± 13.280.5
Platelet count (×103/mm3)312.58 ± 75.34327.32 ± 83.010.4
TLCd (×103/mm3)7.37 ± 3.237.79 ± 3.110.5
V726A allelic16 (18.6%)16 (14.8%)0.5
M694I allelic 10 (11.6%)16 (14.8%)0.5
E148Q allelic 8 (9.3%)14 (12.9%)0.5
M694V allelic 8 (9.3%)13 (12%)0.6
M680I allelic 7 (8.1%)9 (8.3%)1
P369S allelic 01 (0.9%)1

Quantitative data are represented as mean ± standard deviation, while qualitative data are represented as frequency (%).
value < 0.05 is significant. aMPV: mean platelet volume; bESR: erythrocyte sedimentation rate; cCRP: C-reactive protein; dTLC: total leucocytic count.