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Table 2 Characteristics of included studies

From: Effectiveness of dry needling and injections of myofascial trigger points associated with plantar heel pain: a systematic review

Trial Design Number allocated to
experimental and control
groups
Mean age in
years (SD)
% Female Mean duration
of disease in
months (SD)
Exclusion
criteria
Criteria used to
identify the MTrP
Tillu and
Gupta
(1998)
Quasi-experimental
(one group)
Experimental = 18 49.1 (10.7) 72.3% 25.1 (10.7) History of heel surgery
or cortisone injection in
last three months
No criteria used
Imamura
et al.
(1998)
Quasi-experimental
(two groups,
non-randomised)
Experimental = 15
(Actual number is unclear but it
would appear that 20 were
recruited and 5 dropped out)
Control = 9 at discharge.
Experimental:
50.0 (12.2)
Control:
44.0 (NR)
89.7% 27.0 (NR) NR MTrP identified via
palpation (local
tenderness and taut
band)
Perez-Millan
and Foster
(2001)
Quasi-experimental
(one group)
Experimental = 11 39.5 (12.7) 72.8% 39.0 (5.0) NR NR
  1. Key: NR=Not reported