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. 2017 Aug 29;17:277. doi: 10.1186/s12884-017-1459-5

Fig. 1.

Fig. 1

Two-factor model of the BSS-RI (For item content see Table 3.) Item-factor loadings are indicated by arrows. Variance explained within each item by the factor is indicated by the value to the left of the item box. The double-headed arrow indicates the correlation between factors. All values standardised