a nonsignificant trendp = 0.098
Exact binomial tests indicated that the widely assumed threshold of ≥ 70% was not met: the hypothesis of a ≥70% prevalence was statistically rejected for the varus group ( p = 0.0095) and for the cohort as a whole ( p = 0.0031), while the valgus group showed a nonsignificant trend below 70% ( p = 0.098).