Table 1: Characteristics of Included Studies (w: week)

Study N (Women) Intervention Current Treatments
Active Group Sham Group Technique Treatment
Lautenschlager, 1989 17 (17) 20 (18)
  • Electroacupuncture vs placebo treatments with a disconnected laser equipment
6 treatments
Deluze, 1992 36 (33) 34 (21)
  • 4-10 stainless steel needles (0.3-22 mm). Depth: 10-25 mm
  • Electrostimulator (5 pairs of electrodes). 1-99 Hz (frecuency), 10 mA (max. intensity).
  • Electrostimulation in common acupuncture points vs electrostimulation 20 mm away from these points.
6 sessions (2 sessions / w during 3 w) Any other usual treatments: physiotherapy, analgesics, anti-inflammatory agents, tricyclic antidepressants.
Sprott, 1998a 10 10
  • Acupuncture points according to the rules and nomenclature of Traditional Chinese Medicine
  • Acupuncture treatments vs sham treatments (disconnected laser equipment)
6 treatments (2 treatments / w during 3 w)
  • Active and passive physiotherapy
  • Local applications of heat or cold
  • No medication (only Paracetamol in case of powerful pain)
Assefi, 2005 25 (22) 71 (69)
  • Directed acupuncture according to the practice of Traditional Chinese Medicine vs 1 of 3 sham acupuncture treatments: acupuncture for an unrelated condition, needle insertion at nonacupoint locations, or noninsertive simulated acupuncture.
  • Time of needle insertion (30-40 gauge): 30 min./acupoint
2 treatment / w during 12 w Any usual fibromyalgia-related pharmacologic and non-pharmacologic therapies without additional changes
Harris, 2005 29 (29) 28 (24)
  • Sterile, 2.54 cm, single-use, disposable, 38-gauge stainless steel needles
  • Manual stimulation in traditional needle locations vs manual stimulation in non traditional needle locations
  • 3w: 1 treatment / w
  • 3w: 2 treatment / w
  • 3w: 3 treatment / w2w washout period between each treatment dose
Normal treatment regimen without additional changes
Martin, 2006 25 (25) 25 (24)
  • 18 needle during the first 3 sessions and 20 needles during the final 3 sessions
  • Electrical stimulation (frequency: 1-10 Hz) in traditional points vs sham stimulation with modified acupuncture needle that looks identical to the acupuncture treatment
6 treatment sessions (1 treatment / 2 to 4 days during 2 to 3 w)