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Table 3 Results based on age groups

From: Patient factors influencing the effect of surgeon-performed ultrasound on the acute abdomen

  Age < 30 (n = 177) Age 30–59 (n = 388) Age ≥ 60 (n = 218)
US (n = 87) [% (n)] Non-US (n = 90) [% (n)] P value US (n = 198) [% (n)] Non-US (n = 190) [% (n)] P value US (n = 107) [% (n)] Non-US (n = 111) [% (n)] P value
Diagnostic accuracy 65 (56) 60 (52) 0.468 68 (130) 58 (109) 0.042 58 (61) 52 (55) 0.405
Admission 38 (33) 47 (42) 0.240 40 (79) 44 (84) 0.390 52 (56) 63 (70) 0.109
Ultrasound ordered 3 (3) 27 (24) <0.001 10 (19) 28 (53) <0.001 11 (12) 27 (30) 0.003
CT ordered 2 (2) 2 (2) 0.973 5 (9) 12 (22) 0.011 19 (20) 14 (15) 0.297
No other examination ordered 59 (51) 38 (34) 0.006 51 (101) 29 (55) <0.001 37 (39) 27 (30) 0.134
  1. Partially missing data in maximum seven patients per group and analysis