Variables | High-sensitization group (n = 18) | Low/non-sensitization group (n = 18) | p |
---|---|---|---|
Age, median (first and third quartiles), year | 54.00 (51.50–60.25) | 59.50 (51.50–66.25) | 0.23# |
Sex, n (%) |  |  | 1.00†|
 Women | 17 (94.4) | 16 (88.9) |  |
 Man | 1 (5.6) | 2 (11.1) |  |
Marital status, n (%) |  |  | 1.00†|
 Married | 18 (100.0) | 17 (94.4) |  |
 Single | 0 (0.0) | 1 (5.6) |  |
Height, median (first and third quartiles), cm | 155.5 (152.00–160.75) | 158.00 (155.00–160.00) | 0.46# |
Weight, median (first and third quartiles), kg | 55.00 (52.75–60.25) | 57.50 (51.50–66.00) | 0.54# |
BMI, median (first and third quartiles), kg/m2 | 23.30 (21.25–25.83) | 23.14 (20.52–27.07) | 0.67# |
Education level, n (%) |  |  | 0.41†|
 Illiteracy | 1 (5.6) | 2 (11.1) |  |
 Primary school | 1 (5.6) | 1 (5.6) |  |
 High school | 5 (27.8) | 10 (55.6) |  |
 University | 9 (50.0) | 4 (22.2) |  |
 Postgraduate | 1 (5.6) | 1 (5.6) |  |
 Missing | 1 | 0 |  |
Duration of education, median (first and third quartiles), year | 9.50 (8.00–12.5) | 9.00 (6.00–12.00) | 0.25# |
Symptom duration, median (first and third quartiles), year | 4.50 (1.25–12.00) | 5.00 (1.00–8.50) | 0.61# |
Symptom duration, n (%) |  |  | 1.00†|
< 1 year | 4 (22.2) | 4 (22.2) |  |
1 to < 5 years | 6 (33.3) | 5 (27.8) | Â |
5 to < 10 years | 4 (22.2) | 5 (27.8) | Â |
≥ 10 years | 4 (22.2) | 4 (22.2) |  |
Target knees, n (%) |  |  | 0.06†|
 Unilateral | 5 (29.4) | 11 (61.1) |  |
 Bilateral | 12 (70.6) | 7 (38.9) |  |
Severe side of the bilateral knees |  |  | 0.66†|
 Left | 5 (41.7) | 2 (28.6) |  |
 Right | 7 (58.3) | 5 (71.4) |  |
Kellgren criteria, n (%) |  |  | 0.43†|
 Kellgren 1 | 10 (58.8) | 7 (41.2) |  |
 Kellgren 2 | 6 (46.2) | 7 (53.8) |  |
 Kellgren 3 | 1 (20.0) | 4 (80.0) |  |
 Kellgren 4 | 0 (0) | 0 (0) |  |
 Missing | 1 |  |  |
Previous pharmaceutical treatment, n (%) | Â | Â | Â |
 Chinese medicine | 3 (16.7) | 4 (22.2) | 1.00†|
 Calcium tablet | 6 (33.3) | 6 (33.3) | 1.00†|
 Glucosamine products | 4 (22.2) | 4 (22.2) | 1.00†|
 NSAIDs | 1 (5.6) | 0 (0) | 1.00†|
 Others | 0 (0) | 2 (11.1) | 0.49†|
Previous acupuncture treatment, n (%) | 1 (5.6) | 7 (38.9) | 0.04†|
Frequency of acupuncture treatment, median (first and third quartiles) | 10 (0) | 5 (8) | 0.57# |
WOMAC Index, median (first and third quartiles) | Â | Â | Â |
 WOMAC total | 49.85 (19.25–69.13) | 49.05 (21.03–102.85) | 0.84# |
 WOMAC pain | 10.00 (5.50–21.68) | 12.65 (6.60–19.98) | 0.94# |
 WOMAC stiffness | 2.40 (1.08–8.65) | 5.30 (0.83–8.88) | 0.58# |
 WOMAC function | 31.00 (12.50–46.43) | 31.30 (12.98–68.23) | 0.82# |
SF-12 Index, median (fi rst and third quartiles) | Â | Â | Â |
 Physical health | 35.90 (27.11–42.05) | 38.54 (25.91–44.44) | 0.65# |
 Mental health | 53.74 (47.45–56.68) | 45.89 (37.66–56.20) | 0.10# |
Active range of motion, median (first and third quartiles) | Â | Â | Â |
 Flexion | 115.50 (109.50–132.50) | 112.00 (104.50–125.00) | 0.14# |
 Extension | 0 (0) | 0 (0) | 0.79# |
 Internal rotation | 20.00 (15.75–30.25) | 19.00 (12.75–26.00) | 0.39# |
 External rotation | 28.00 (24.50–30.25) | 25.50 (20.00–31.50) | 0.72# |
Passive range of motion, median (first and third quartiles) | Â | Â | Â |
 Flexion | 127.00 (121.75–145.00) | 125.50 (110.25–135.00) | 0.17# |
 Extension | 0 (0) | 0 (0) | NA |
 Internal rotation | 29.00(24.25–35.00) | 25.50 (22.00–31.75) | 0.46# |
 External rotation | 35.00 (28.25–36.50) | 31.00 (24.00–37.25) | 0.39# |