Table 3

Exploratory factor analysis

ScaleItemsFactor(n)Variance (%)
SRI-RC82 (F1: I-2, 5,12,19,22,29; F2: I-24,25)55.58%
SRI-PF62 (F1: I-1,16,45; F2: I-32,33,41)70.25%
SRI-AS72 (F1: I-9,17,18; F2: I-6,11,14,42)61.80%
SRI-SR62 (F1: I-21,43,46; F2: I-7,10,27)73.90%
SRI-AX51 (F1: I-8,13,26,28,39)67.54%
SRI-WB92 (F1: I-4,30,34,38,40; F2: I-20,36,44,49)72.27%
SRI-SF82 (F1: I-15,23,31,35,47,48; F2: I-3,37)67.61%
SRI-SSseven scales159.03%
  • F, factor; I, item.; SRI-AX, anxiety; SRI-AS, attendant symptoms and sleep; SRI-PF, physical functioning; SRI-RC, respiratory complaints; SRI-SF, social functioning; SRI-SR, social relationships; SRI-SS, summary scale; SRI-WB, psychological well-being.