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Table 2 Comparison of the mean HIA between groups (N = 312 toes, 165 patients)

From: Relationship between the presence of abnormal hallux interphalangeal angle and risk of ingrown hallux nail: a case control study

Degrees Control group Onychocryptosis P
Median (minimum, maximum) (12.73, 14.20) (16.44, 18.33)  
Mean ± SD 13.47 ± 4.66 17.39 ± 6.00 .036a
Typical mean error .374 .481  
95 % CI (lower limit, upper limit) (12.73-14.20) (16.44-18.33)  
  1. aStudent t test; CI (95 %)
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