Occupational influences on Spondylolysis and Spondylolisthesis in a cohort of 18-year-old male military conscripts

Table 2 Percentage of soldiers assigned to each occupational group by medical severity

Medical category	Administrative		Combat		Maintenance		Driving		Total
Medical category	N	%	N	%	N	%	N	%	N	%
Cat2^a	84	8.0%	64	23.3%	8	6.1%	6	9.5%	162	10.7%
Cat3	649	61.7%	208	75.6%	75	57.3%	29	46.0%	961	63.2%
Cat4^a	319	30.3%	3	1.1%	48	36.6%	28	44.4%	398	26.2%
Total^b	1052	69.2%	275	18.1%	131	8.6%	63	4.1%	1521	100%

Cat2 – Asymptomatic spondylolysis
Cat3 – Painful spondylolysis or Asymptomatic grade 1 spondylolisthesis without clinical findings
Cat4 – Grade 1 spondylolisthesis with pain
^aPercentages in rows 2 to 4 are from total in assignment grouping
^bPercentages in the bottom row are assignment grouping from the total cohort

ISSN: 1471-2474