Table 1.

Demogrphics of pateints and controls

		Patients			Controls
	Male	Female	Total	Male	Female	Total
	187	159	346	96	120	216
Age group (years)
10–19	1	2	3
20–29	19	16	35	15	33	48
30–39	23	13	36	18	22	40
40–49	18	19	37	20	16	36
50–59	30	29	59	15	21	36
60–69	39	40	79	12	15	27
70–79	47	32	79	12	12	24
80–89	9	8	17	4	1	5
≥90	1		1
Diagnosis
Lumbar disc herniation (LDH)			160
Lumbar spinal canal stenosis (LCS)			183
LDH + LCS			3
Other orthopedic disorders
Present			18			3
Absent			328			213