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Table 1 Background Characteristics by Procedure

From: Utilization of CT scanning associated with complex spine surgery

Variable Cervical Fusion (N = 31,121) Lumbar Fusion (N = 40,199) Other (N = 69,340) Discectomy (N = 39,943) Laminectomy (N = 49,889)
Demographics
Female Sex, n (%) 15,843 (51) 23,524 (59) 38,402 (55) 19,396 (49) 25,101 (50)
 Age, n (%), yr
   < 20 0 (0) 125 (0) 595 (1) 109 (0) 181 (0)
  20–34 0 (0) 616 (2) 1,166 (2) 2,069 (5) 680 (1)
  35–49 5,550 (18) 3,569 (9) 8,671 (13) 7,372 (18) 3,076 (6)
  50–64 11,333 (36) 10,996 (27) 21,312 (31) 11,340 (28) 11,145 (22)
  65+ 13,494 (43) 24,558 (61) 37,094 (53) 19,044 (48) 34,808 (70)