Table 5. Duration of treatment.

(A)
Low back pain
Excruding chronic pain			Chronic pain
Duration of treatment	Number of cases		Duration of treatment	Number of cases
Single session	8		Single session	2
<1 month	7		<1 month	3
<2 months	0		<2 months	3
≥3 months	0		≥3 months	3
(B)
Leg pains
Excruding chronic pain			Chronic pain
Duration of treatment	Number of cases		Duration of treatment	Number of cases
Single session	2		Single session	2
<1 month	0		<1 month	2
<2 months	0		<2 months	0
≥3 months	0		≥3 months	1
(C)
Low back pain and leg pain
Excruding chronic pain			Chronic pain
Duration of treatment	Number of cases		Duration of treatment	Number of cases
Single session	0		Single session	0
<1 month	5		<1 month	6
<2 months	2		<2 months	3
≥3 months	0		≥3 months	6

Duration of treatment with combined ASTR and TPB for non chronic and chronic low back pain (A), leg pain (B), and low back and leg pain (C).

Chronic pain is defined as pain persisting more than 3 months at the beginning of the first visit.