Table 1.

Patient demographics

Characteristics of study patients
Total patients	4010
Age range (y)	0-101
Mean (average) age (y)	38
Median age (y)	34
Female	51%
Total unique radiographed patients	320
Age range (y)	11-89
Mean (average) age (y)	46
Median age (y)	45
Female	48%
Total radiograph series taken	466
Total radiograph with full spine converted to sectionals	614
Total types of radiograph series	44