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. Author manuscript; available in PMC: 2018 Jul 1.
Published in final edited form as: Pediatr Blood Cancer. 2016 Dec 30;64(7):10.1002/pbc.26407. doi: 10.1002/pbc.26407

FIGURE 1.

FIGURE 1

Association of femoral neck shaft angle (NSA) with osteonecrosis. Neck shaft angle trended smaller with increasing age (P=0.056, Figure 1a). Children who developed osteonecrosis had a trend toward smaller femoral neck shaft angles (NSA) than did controls (141° in cases vs. 143° in controls, P=0.09, Figure 1b), although there was considerable overlap between the groups. The association between neck shaft angle and osteonecrosis was further weakened when age was considered as a covariate (P=0.11).