Table 6 Pattern Matrix of Factor Analysis of 54 fatigue items from the CIS20r, FSS, SF36 vitality and MFIS.

From: Fatigue Profiles in Patients with Multiple Sclerosis are Based on Severity of Fatigue and not on Dimensions of Fatigue

Fatigue ItemFactor
12345678
CIS20r_1c_fatigue0.765       
CIS20r_2_motivation0.180  0.593 0.186  
CIS20r_3c_conc0.1320.802−0.137     
CIS20r_4c_fatigue0.642     −0.1020.321
CIS20r_5_motivation   0.740    
CIS20r_6_fatigue0.578  0.235    
CIS20r_7_act     0.839 −0.109
CIS20r_8_conc 0.778−0.180  0.119  
CIS20r_9c_fatigue0.227      0.549
CIS20r_10c_act     0.858  
CIS20r_11_conc 0.841−0.236     
CIS20r_12_fatigue0.678  0.109    
CIS20r_13c_conc 0.730−0.218   0.100 
CIS20r_14c_fatigue*0.329 0.1190.125 0.121 0.296
CIS20r_15_motivation   0.810  0.125 
CIS20r_16c_fatigue0.643    0.1080.138 
CIS20r_17c_act 0.139   0.619  
CIS20r_18c_motivation   0.575   0.150
CIS20r_19c_conc 0.742−0.187    0.178
CIS20r_20_fatigue0.454 0.1120.186  0.1700.144
SF36_23c   −0.508−0.188   
SF36_27c*−0.417  −0.306−0.126−0.107  
SF36_29−0.541 −0.155 −0.108  −0.179
SF36_31−0.746 −0.112     
FSS_1 0.148 0.1470.419   
FSS_2 −0.111    0.3580.117
FSS_3*0.468   0.203 0.326−0.102
FSS_4*    0.432 0.438 
FSS_5    0.492 0.2200.248
FSS_6  0.169 0.150 0.644−0.116
FSS_7 0.103  0.4930.2560.275 
FSS_8*0.344   0.448  −0.158
FSS_90.160   0.6170.144  
MFIS_1_cognitive0.1310.5730.228 0.136 −0.139 
MFIS_2_cognitive0.1340.7580.151    −0.120
MFIS_3_cognitive 0.7390.116     
MFIS_4_fys* 0.3610.338   0.1590.106
MFIS_5_cognitive 0.6950.170     
MFIS_6_fys 0.1180.567 −0.1040.1290.218 
MFIS_7_fys  0.5420.2010.128 −0.155 
MFIS_8_psychosoc* 0.1340.3830.2180.318 −0.245 
MFIS_9_psychosoc  0.5050.1050.1470.160  
MFIS_10_fys0.118 0.580  0.1350.306 
MFIS_11_cognitive−0.1270.5660.177 0.136 −0.108 
MFIS_12_cognitive 0.6490.169 0.124 −0.150 
MFIS_13_fys*  0.398   0.1800.387
MFIS_14_fys0.247 0.457    0.220
MFIS_15_cognitive 0.7610.166     
MFIS_16_cognitive 0.7690.150     
MFIS_17_fys 0.1170.595  0.1440.183 
MFIS_18_cognitive 0.7670.153     
MFIS_19_cognitive 0.869     −0.112
MFIS_20_fys  0.667  0.1580.107 
MFIS_21_fys*0.300 0.465−0.108 0.121  
  1. Extraction Method: Principal Axis Factoring, Rotation Method: Oblimin with Kaiser Normalization, Rotation converged in 25 iterations.
  2. Small item-to-factor loadings < −0.100–0.100 > are not presented.
  3. For each item the highest factor loading in bold. Fatigue items marked with an asterix do not discriminate enough and are actually redundant. In Italic: items with loading difference  < 0.200.