Table 2 No-Treatment Control Studies
STUDY | CONTROL TREATMENT | SAMPLE SIZE OF CONTROL GROUP | BASELINE PAIN VAS SCORE [mean(sd)/100 mm] | OUTCOME INTERVAL | ABSOLUTE CHANGE (mm on VAS)* | RELATIVE CHANGE (%) | EFFECT SIZE | QUALITY SCORE (Jadad Scale out of 5) |
|---|---|---|---|---|---|---|---|---|
Chiu et al., 2004 [58] | Infrared therapy and advice | 78 | 43 (21) | 6 weeks 6 months | -5 -4 | -11.7% -10.1% | .22 .17 | 3.5 |
Waling et al., 2000 [40] | Education sessions for 2 hr, 1/week for 10 weeks | 21 | 32 (23) | 10 weeks | -2 | -6.2 | .08 | 3 |
Viljanen et al., 2003 [43] | No treatment | 130 | 41 (22) | 12 weeks 24 weeks 52 weeks | -14 -12 -9 | -34.1 -29.2 -21.9 | .59 .48 .38 | 3 |
Taimela et al., 2000 [41] | No formal treatment | 26 | 59.9 (19.6) | 12 weeks 52 weeks | -20.9 not given | -33% undet. | undet undet | 3 |
Lundblad et al., 1999 [58] | No treatment | 23 | Usual pain = 20 (14) Worst pain = 55 (28) | 6 weeks usual: worst: | -9 -7 | -45 -13 | .64 .25 | 3 |
TOTAL/AVERAGE |  | 278 | 46.2 |  | For 1–10 wk = -5.7 [-8.6, -2.8] mm For 12–52 wk = -11.9 [-17.4, -6.4] mm | For 1–10 wk = -10.3% [-14.4, -6.2]] For 12–52 wk = -25.7% [-34.3, -17.1] | For 1–10 wk = .18 [-0.05, 0.41] For 12–52 wk = .4 [0.12, 0.68] |  |