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Table 4 Comparison of clinical indexes between 2 groups \( \left(\overline{x}\pm s\right) \)

From: The direct anterior approach for simultaneous bilateral total hip arthroplasty: a short-term efficacy analysis

Group n Incision length (cm) Operation time (min) Intraoperative blood loss (ml) Transfusion volume (ml) Hospitalization time (d)
A 46 7.7 ± 0.9 216.8 ± 19.9 322.6 ± 27.0 322.5 ± 157.9 5.3 ± 1.2
B 43 11.0 ± 1.1 255.8 ± 23.6 389.5 ± 26.6 418.0 ± 70.0 8.5 ± 2.3
Statistic evaluation   t = −17.216
p <0.001
t = −9.262
p < 0.001
t = − 11.782
p < 0.001
t = −6.374
p < 0.001
t = − 9.636
p < 0.001