Ultrasonographic detection of enthesitis and its relation to clinical manifestations among Egyptian systemic sclerosis patients

Egyptian Rheumatology and Rehabilitation

Table 4 Best fitting multiple linear regression models for the MASEI score

Parameters	Β	SE	t test	P value
ESR level	6.523	0.113	7.123	0.005
Modified Rodnan skin score	7.632	0.133	7.764	0.004*
Nail capillaroscopy	0.355	0.072	0.970	0.052
Clinical manifestations
DcSsc	2.543	0.044	2.379	0.016*
LcSsc	0.295	0.663	0.454	0.602
Raynaud’s	0.139	0.029	1.571	0.154
IPF	0.885	1.991	1.362	0.163
Digital ulcer	0.345	0.776	0.530	0.500
Pulmonary hypertension	2.975	0.052	2.784	0.013*
Telangiectasia	0.162	0.033	1.838	0.127
Esophageal dysmobility	1.036	2.329	1.593	0.136
Arthritis/arthralgia	8.929	0.155	6.314	0.003*
Laboratory investigations
Hemoglobin (g/dl)	1.212	2.724	1.865	0.113
WBC (10⁹/l)	0.486	0.099	3.477	0.035*
Platelets (10⁹/l)	0.415	0.085	1.655	0.063
Nailfold capillary pattern
Early pattern	0.404	0.908	0.621	0.415
Active	0.190	0.039	1.131	0.106
Late	10.447	0.182	3.654	0.003*
Normal pattern	0.472	1.062	0.726	0.344
Capillary density	0.190	0.039	1.131	0.106
Capillary length	0.221	0.045	1.496	0.088
Capillary width	3.481	0.060	3.257	0.011*
Capillary hemorrhage	0.553	1.242	0.851	0.286
*Capillary shape*
Normal shape	0.259	0.053	1.925	0.073
Dilated- mega-capillaries	0.647	1.455	0.995	0.238
Tortuous capillaries	0.303	0.062	1.405	0.061
Sub-capillary venous plexus	0.757	1.701	1.164	0.197

R = 0.623; Model ANOVA: F = 7.514, < 0.05, using linear regression analysis, P > 0.05 NS; *P ≤ 0.05 S; LcSSc limited type, DcSSc diffuse type, IPF interstitial pulmonary fibrosis, ESR erythrocyte sedimentation rate, WBC white blood cells