Table 1 Demographic and clinical characteristics of study participants
From: Developing a risk prediction model for the functional outcome after hip arthroscopy
Characteristic | Total sample (n = 203) | Patients with successful outcomea (n = 133) | Patients with unsuccessful outcomea (n = 46) | Patients with missing outcome (n = 24) | ||||
|---|---|---|---|---|---|---|---|---|
Value | Missing | Value | Missing | Value | Missing | Value | Missing | |
Gender (female) | 114 (56%) | – | 64 (48%) | – | 33 (72%) | – | 17 (71%) | – |
Age (yrs) | 40 (11, 15–67) | – | 40 (11, 17–67) | – | 40 (10, 18–55) | – | 39 (13, 15–64) | – |
BMI (kg/m2) | 26 (4, 18–42) | – | 25 (4, 18–35) | – | 26 (5, 20–42) | – | 27 (6, 20–40) | – |
Duration of complaints (yrs) | 4 (4, 1–30) | – | 4 (4, 1–25) | – | 3 (2, 1–10) | – | 5 (6, 1–30) | – |
Tönnis classification | 193 | 10 (5%) | 128 | 5 (4%) | 45 | 1 (2%) | 20 | 4 (17%) |
 Grade 0 | 142 (74%) | – | 94 (73%) | – | 35 (78%) | – | 13 (65%) | – |
 Grade 1 | 46 (23%) | – | 32 (25%) | – | 9 (20%) | – | 5 (25%) | – |
 Grade 2 | 5 (3%) | – | 2 (2%) | – | 1 (2%) | – | 2 (10%) | – |
Alpha angle (o) | 64 (14, 39–99) | – | 66 (14, 39–99) | – | 62 (13, 39–91) | – | 62 (14, 43–89) | – |
Cam | 120 (59%) | – | 87 (65%) | – | 20 (44%) | – | 13 (54%) | – |
Pincer | 45 (22%) | – | 26 (20%) | – | 12 (26%) | – | 7 (29%) | – |
Labral tear | 138 (68%) | – | 87 (65%) | – | 37 (80%) | – | 14 (58%) | – |
Preoperative PRO scores | ||||||||
 VAS pain, mean | 6 (2, 1–10) | – | 6 (2, 1–10) | – | 6 (2, 2–9) | – | 7 (1,3–9) | – |
 mHHS, mean (SD, range) | 55 (12, 22–90) | – | 57 (12, 26–90) | – | 53 (11, 23–80) | – | 50 (14, 22–72) | – |
 HOS-ADL, mean (SD, range) | 58 (20, 7–96) | 2 (1%) | 60 (20, 7–96) | – | 53 (18, 14–84) | – | 55 (22, 15–91) | 2 (8%) |
 HOS-Sport, mean (SD, range) | 40 (22, 0–94) | 11 (5%) | 42 (23, 0–94) | 3 (2%) | 38 (19, 3–78) | 3 (7%) | 34 (22, 0–72) | 5 (21%) |
 WHOQOL physical, mean (SD, range) | 49 (16, 7–86) | 30 (15%) | 50 (16, 7–86) | 17 (13%) | 48 (14, 21–82) | 6 (13%) | 45 (19, 7–75) | 7 (29%) |
 WHOQOL psychological, mean (SD, range) | 71 (15, 13–100) | 29 (14%) | 72 (15, 13–100) | 16 (12%) | 67 (16, 25–95) | 6 (13%) | 69 (16, 38–96) | 7 (29%) |
PRO scores at 3Â months postoperative | ||||||||
 VAS pain | 3 (2, 0–9) | 12 (6%) | 2 (2, 0–9) | 6 (5%) | 4 (3, 0–8) | 1 (2%) | 2 (2, 0–6) | 5 (21%) |
 mHHS | 73 (15, 17–91) | 12 (6%) | 77 (12, 41–91) | 5 (4%) | 63 (18, 17–91) | 1 (2%) | 69 (15, 41–87) | 6 (25%) |
 HOS-ADL | 76 (20, 27–100) | 118 (58%) | 81 (15, 38–100) | 77 (58%) | 64 (23, 28–100) | 27 (59%) | 73 (25, 27–100) | 14 (58%) |
 HOS-Sport | 62 (27, 6–100) | 129 (64%) | 65 (24, 6–100) | 83 (62%) | 51 (32, 6–100) | 29 (63%) | 63 (26, 33–97) | 17 (71%) |
 WHOQOL physical |  |  |  |  |  |  |  |  |
 WHOQOL psychological |  |  |  |  |  |  |  |  |
PRO scores at 1Â year postoperative | ||||||||
 VAS pain | 3 (3, 0–9) | 20 (10%) | 1 (2, 0–9) | – | 5 (2, 0–9) | – | 6 (4, 1–9) | 20 (83%) |
 mHHS | 77 (16, 27–91) | 25 (12%) | 84 (9, 47–91) | 1 (1%) | 57 (15, 27–91) | 3 (7%) | 60 (31, 29–91) | 21 (88%) |
 HOS-ADL | 81 (21, 14–100) | 24 (12%) | 91 (9, 56–100) | – | 51 (17, 14–78) | – | – | 24 (100%) |
 HOS-Sport | 71 (26, 11–100) | 36 (18%) | 83 (16, 28–100) | 7 (5%) | 36 (18, 11–81) | 6 (13%) | 38 (38, 38–38) | 23 (96%) |
 WHOQOL physical | 70 (20, 7–100) | 26 (13%) | 77 (15, 7–100) | 3 (2%) | 48 (17, 14–79) | 1 (2%) | 50 (25, 32–68) | 22 (92%) |
 WHOQOL psychological | 76 (14, 29–100) | 26 (13%) | 79 (13, 29–100) | 3 (2%) | 68 (13, 38–92) | 1 (2%) | 52 (9, 46–58) | 22 (92%) |
Components of composite outcome | ||||||||
Increase in HOS-ADL > 23 | 85 (47%) | 24 (12%) | 85 (64%) | – | 0 (0%) | – | – | 24 (100%) |
Postoperative HOS-ADL > 80 | 120 (67%) | 24 (12%) | 120 (90%) | – | 0 (0%) | – | – | 24 (100%) |