Table 2

Univariate predictors of WORC and ASES functional outcome measures*

PredictorsWORC SummaryASES Pain severityASES FunctionASES Composite
Mean(95% CI)p valueMean(95% CI)p valueMean(95% CI)p valueMean (95% CI)p value
Sex
 Male67.5(43.8–91.3)0.333.8(2.4–5.2)0.1446.7(5.8–87.5)0.3678.2(58.9–97.5)0.22
 Female61.4(50.1–71.9)3.3(2.5–4.1)37.0(23.8–50.2)75.0(64.8–85.2)
Surgeon
 Experienced68.0(52.1–83.9)0.413.9(3.1–4.7)0.4537.8(16.4–59.1)0.5979.9(60.1–99.7)0.26
 Other60.3(45.9–74.7)3.2(2.1–4.3)41.3(23.8–58.9)74.2(63.2–85.2)
Previous surgery
 No65.2(54.8–75.6)0.803.9(3.2–4.5)0.0245.9(33.3–58.4)0.0581.9(74.6–89.2)0.02
 Yes55.9(8.7–103.1)1.5(−1.5 to 4.5)26.0(15.2–36.8)45.3(−2.2 to 92.9)
Time to OR
 < 3 wk67.3(56.7–77.8)0.273.8(3.1–4.5)0.1044.0(30.2–57.8)0.1480.9(72.1–89.8)0.11
 ≥ 3 wk51.8(20.7–82.9)2.5(0.5–4.5)30.3(3.8–56.9)63.0(31.3–94.7)
Type of prosthesis
 Global64.8(51.9–77.8)0.753.2(2.3–4.2)0.4234.7(22.7–46.7)0.1775.3(63.1–87.5)1.00
 Neer60.9(41.8–79.9)4.1(3.4–4.8)47.8(20.2–75.4)79.2(60.8–97.5)
Rotator cuff tear
 Yes68.1(54.7–81.4)0.314.1(3.5–4.8)0.0437.7(22.7–52.7)0.3978.9(63.9–93.9)0.36
 No57.9(40.7–75.1)2.7(1.5–3.9)43.3(16.1–70.4)73.4(60.6–86.3)
Cement
 No67.8(47.3–88.4)0.564.1(3.0–5.3)0.2547.5(−22.4 to 117.4)0.5180.9(57.3–104.5)0.12
 Yes61.9(49.3–74.5)3.3(2.4–4.1)38.0(24.7–51.3)74.1(64.1–84.0)
Tuberosity attachment
 Sutures63.1(52.5–73.7)0.633.6(2.9–4.3)0.7741.6(28.4–54.7)0.7378.8(69.0–88.6)0.11
 Wires68.3(−20.2 to 156.9)3.0(−3.6 to 9.6)36.0(−10.0 to 82.0)63.0(9.2–116.8)
Neer classification
 2-part3.80.584.00.590.1374.00.49
 3-part53.6(15.9–91.2)4.3(2.7–5.8)21.090.5(58.7–122.3)
 4-part64.7(50.9–78.6)3.3(2.3–4.4)46.5(31.1–61.9)76.4(63.5–89.4)
Postoperative complication
 No65.5(54.3–76.6)0.633.8(3.1–4.5)0.1244.9(31.3–58.4)0.1881.4(73.8–88.9)0.12
 Yes56.4(23.6–89.1)2.5(0.5–4.5)28.3(10.9–45.8)56.8(11.5–101.9)
  • ASES = American Shoulder and Elbow Surgeons Evaluation form; CI = confidence interval; OR = operating room; WORC = Western Ontario Rotator Cuff index.

  • * Higher WORC and ASES scores correspond to less pain and better function.

  • Kruskal–Wallis and Mann–Whitney U tests.

  • No CIs computed if n ≤ 2.