Table 1:

Included patient referrals for lumbar spine computed tomography stratified by sex and age category

Age category, yrNo. of records
n = 14 370
Female sex7795
 20–24132
 25–29249
 30–34356
 35–39497
 40–44718
 45–49863
 50–541051
 55–591020
 60–64966
 65–69850
 70–74525
 75–79314
 80–84168
 ≥ 8586
Male sex6575
 20–24119
 25–29209
 30–34338
 35–39414
 40–44577
 45–49742
 50–54869
 55–59918
 60–64880
 65–69636
 70–74457
 75–79237
 80–84128
 ≥ 8551