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TABLE AND FIGURE CAPTIONS
Tab.1 Characteristics of patients according to whether or not denosumab-related
osteonecrosis of the jaw was present
Tab. 2 Characteristics of extracted teeth according to whether or not denosumab-related
osteonecrosis of the jaw was present
10
Tab. 3 Results of multivariate logistic regression analysis of risk factors for
denosumab-related osteonecrosis of the jaw
11
12
Fig. 1 Cumulative incidence rate of denosumab-related osteonecrosis of the jaw in patients
13
with cancer on denosumab therapy.
14
15
Fig. 2 Receiver-operating characteristic curve for duration of administration of denosumab
16
as an indicator of possible denosumab-related osteonecrosis of the jaw.
17
18
ACKNOWLEDGEMENTS
19
We thank Editage (https://www.editage.jp/) for editing a draft of this manuscript.
20
21
Table 1. Characteristics of patients according to whether or not denosumab-related osteonecrosis of the jaw was present
Variable
DRONJ
P-value
Present
Absent
n (%)
n (%)
25 (34.7)
47 (65.3)
Stage 0
1 (4.0)
Stage 1
10 (40.0)
Stage 2
11 (44.0)
Stage 3
3 (12.0)
Male
10 (40.0)
21 (43.1)
Female
15 (60.0)
26 (56.9)
44–82
41–85
66.3 ± 11.3
64.60 ± 12.2
0.534 **
0 or 1
23 (92.0)
44 (93.6)
1.000 *
2 or 3
2 (8.0)
3 (6.4)
Yes
3 (12.0)
9 (19.1)
No
18 (72.0)
33 (70.2)
Unknown
4 (16.0)
5 (10.6)
5–51
1–85
Mean ± SD
22.4 ± 13.5
13.7 ± 15.3
< 0.001**
≥ 18 months
16 (66.7)
10 (27.8)
< 0.001*
< 18 months
9 (33.3)
37 (72.2)
Yes
2 (8.0)
3 (6.4)
No
23 (92.0)
44 (93.6)
Yes
4 (16.0)
8 (17.0)
No
21 (84.0)
39 (83.0)
Patients, n
Sex
0.805 *
Age
Range (years)
Mean ± SD
Performance status
Smoking history
0.735*
Duration of oncologic doses of denosumab
Range (months)
Comorbidity or drug-induced risk factors
Diabetes mellitus
1.000*
Corticosteroid therapy
Additional chemotherapy
1.000*
Yes
17 (72.3)
34 (70.8)
0.787*
No
8 (27.7)
13 (28.2)
Breast cancer
8 (32.0)
12 (25.5)
Prostate cancer
2 (8.0)
12 (25.5)
Multiple myeloma
1 (4.0)
4 (8.5)
Lung cancer
2 (8.0)
6 (12.8)
Other
1 (4.0)
4 (8.5)
11 (44.0)
9 (19.1)
1–283
2–272
66.0 ± 61.7
58.9 ± 63.5
0.367**
Yes
18 (46.2)
54 (55.7)
0.347*
No
21 (53.8)
43 (44.3)
Yes
16 (64.0)
25 (56.9)
No
9 (36.0)
22 (43.1)
Yes
3 (12.0)
10 (21.3)
No
22 (88.0)
37 (78.7)
Yes
4 (16.0)
2 (4.6)
No
21 (84.0)
45 (95.7)
Maxillary
10 (40.0)
23 (48.9)
Mandibular
14 (56.0)
21 (44.7)
1 (4.0)
3 (6.4)
2 (8.0)
5 (10.6)
22 (88.0)
37 (78.7)
1 (4.0)
5 (10.6)
Adequate alveolar bone volume
19 (76.0)
31 (66.0)
Bone loss
6 (24.0)
16 (44.0)
24 (96.0)
29 (61.7)
Type of cancer
Unknown
0.171***
Interval between tooth extraction and last denosumab injection
Range (days)
Mean ± SD
Drug holiday before tooth extraction
Reason for tooth extraction
Periapical periodontitis
0.457*
P4 periodontitis
0.521*
Pericoronitis
0.173*
Jawbone
Maxillary and mandibular
0.881***
Site of tooth extraction
Anterior region
Molar region
Anterior and molar region
0.562***
Bone volume around tooth
0.432*
Pre-existing inflammation
Yes
0.002*
No
1 (4.0)
18 (38.3)
Yes
24 (61.5)
51 (52.6)
No
15 (38.5)
46 (47.4)
Single
11 (44.0)
20 (42.6)
Multiple
14 (56.0)
27 (57.4)
Yes
11 (44.0)
11 (23.4)
No
14 (56.0)
36 (76.6)
Yes
5 (20.0)
6 (12.8)
No
20 (80.0)
41 (87.2)
Open
12 (48.0)
15 (31.9)
Closed with suture
12 (48.0)
28 (59.6)
1 (4.0)
4 (8.5)
Preoperative antibiotics administration
0.446*
Number of teeth extracted
1.000*
Additional surgical procedure
Bone removal
0.106*
Root amputation
0.497*
Wound status after extraction
Completely closed with relaxation incision or removal
0.736***
of bone edge
*Fisher’s exact test, **Mann-Whitney U test, ***chi-squared test. DRONJ, denosumab-related osteonecrosis of the jaw; SD,
standard deviation
Table 2. Characteristics of extracted teeth according to whether or not denosumab-related osteonecrosis of the jaw was
present
Variable
DRONJ
P-value
Present
Absent
n (%)
n (%)
39 (28.7)
97 (71.3)
Male
16 (41.0)
47 (48.5)
Female
23 (59.0)
50 (51.5)
44–82
41–85
66.6 ± 10.0
66.0 ± 13.0
0.860**
0 or 1
36 (92/3)
87 (89.7)
0.355*
2 or 3
3 (7.7)
10 (10.3)
5–51
1–85
Mean ± SD
23.4 ± 13.1
15.7 ± 14.0
< 0.001**
≥18 months
26 (66.7)
27 (27.8)
< 0.001*
<18 months
13 (33.3)
70 (72.2)
Yes
2 (5.1)
16 (6.2)
No
37 (94.9)
91 (93.8)
Yes
9 (23.1)
13 (13.4)
No
30 (76.9)
84 (86.6)
Yes
27 (69.2)
63 (64.9)
No
12 (30.8)
34 (35.1)
Breast cancer
13 (33.3)
32 (33.0)
Prostate cancer
6 (15.4)
34 (35.1)
Multiple myeloma
1 (2.6)
6 (6.2)
Lung cancer
3 (7.7)
9 (9.3)
Teeth, n
Sex
0.454*
Age
Range (years)
Mean ± SD
Performance status
Duration of oncologic doses of denosumab
Range (months)
Comorbidity or drug-induced risk factors
Diabetes mellitus
1.000*
Corticosteroid therapy
0.200*
Additional chemotherapy
0.692*
Type of cancer
0.386***
Other
3 (7.7)
4 (4.1)
13 (33.3)
12 (12.4)
1–283
2–272
61.5 ± 53.1
84.6 ± 77.3
0.376**
Yes
18 (46.2)
54 (55.7)
0.347*
No
21 (53.8)
43 (44.3)
24 (61.5)
37 (38.1)
Periapical periodontitis + radicular cyst
1 (2.6)
1 (1.0)
P4 periodontitis
7 (18.0)
33 (34.0)
C4 caries
1 (2.6)
17 (17.5)
Pericoronitis
4 (10.3)
3 (3.1)
Root fracture
1 (2.6)
6 (6.2)
Other
1 (2.6)
0 (0)
Yes
25 (64.1)
38 (39.2)
No
14 (35.9)
59 (60.8)
Yes
7 (18.0)
33 (34.0)
No
32 (82.0)
64 (66.0)
Yes
4 (10.3)
3 (3.1)
No
35 (89.7)
94 (96.9)
Maxillary
16 (41.0)
54 (55.7)
Mandibular
23 (59.0)
43 (44.3)
Anterior region
8 (20.5)
25 (25.8)
Molar region
31 (79.5)
72 (74.2)
Adequate alveolar bone volume
26 (66.7)
49 (50.5)
Bone loss
13 (33.3)
48 (49.5)
Yes
38 (97.4)
65 (67.0)
No
1 (2.6)
32 (33.0)
Unknown
Duration between tooth extraction and last denosumab injection
Range (days)
Mean ± SD
Drug holiday before tooth extraction
Reason of tooth extraction
Periapical periodontitis
0.009***
Periapical periodontitis
0.014*
P4 periodontitis
0.095*
Pericoronitis
0.104*
Jawbone
0.134*
Site of tooth extraction
0.659*
Bone volume around tooth
0.127*
Pre-existing inflammation
< 0.001*
Preoperative administration of antibiotics
Yes
24 (61.5)
51 (52.6)
No
15 (38.5)
46 (47.4)
Single
15 (38.5)
33 (34.0)
Multiple
24 (61.5)
64 (66.0)
Yes
17 (43.6)
30 (30.9)
No
22 (56.4)
67 (69.1)
Yes
8 (20.5)
8 (8.2)
No
31 (79.5)
89 (91.8)
Open
17 (43.6)
33 (34.0)
Closed with suture
20 (51.3)
51 (52.6)
2 (5.1)
13 (13.4)
0.446*
Number of teeth extracted
0.693*
Additional surgical procedure
Bone removal
0.169*
Root amputation
0.073*
Wound status after extraction
Completely closed with relaxation incision or removal
0.297***
of bone edge
*Fisher’s exact test, **Mann-Whitney U test, ***chi-squared test. DRONJ, denosumab-related osteonecrosis of the jaw; SD,
standard deviation
Table 3. Results of multivariate logistic regression analysis of risk factors for denosumab-related osteonecrosis of the
jaw
95% CI
Variable
P-value
Odds ratio
Lower
Upper
0.001
243.77
11.03
5390.17
< 0.001
73.50
7.45
724.71
Periapical periodontitis
0.001
14.13
3.06
65.29
Longer duration of high-dose denosumab therapy
0.016
4.69
1.34
16.49
Female sex
0.037
1.04
1.00
1.09
Pre-existing inflammation
Steroid therapy
CI, confidence interval
...