From: The impact of smoking on outcomes following anterior cervical fusion-nonfusion hybrid surgery: a retrospective single-center cohort study
Current smoker
Former smoker
Nonsmoker
P value
Heterotopic ossification
24
22
46
0.097
1
0
4
6
2
18
14
34
3
Bone loss
40
 < 0.001*
10
12
39
9