Table 3.
Standardized mean differences between intervention and control group
| Intervention group | Control group | Standardized mean difference (95% CI) | Unbiased standardized mean difference (95% CI) | |||||
|---|---|---|---|---|---|---|---|---|
| Study | N | Mean | SD | N | Mean | SD | ||
| Pagel and Krolikowski (2009) | 6 | 42 | 5.00 | 6 | 46 | 5.00 | −0.80 (−1.98, 0.38) | −0.74 (−1.82, 0.35) |
| Gomez et al. (2008) | 8 | 35 | 14.14 | 9 | 58 | 15.00 | −1.57 (−2.66, −0.49) | −1.49 (−2.53, −0.46) |
| Gomez et al. (2008) | 7 | 36 | 18.52 | 9 | 66 | 21.00 | −1.50 (−2.62, −0.39) | −1.42 (−2.48, −0.36) |
| Fang et al. (2008) | 12 | 24.9 | 3.60 | 12 | 47.5 | 4.20 | −5.78 (−7.60, −3.96) | −5.58 (−7.34, −3.82) |
| Leshnower et al. (2008) | 12 | 39 | 10.39 | 15 | 60 | 7.75 | −2.33 (−3.31, −1.35) | −2.26 (−3.21, −1.31) |
| Huhn et al. (2008) | 9 | 31.8 | 7.70 | 9 | 51.4 | 5.00 | −3.02 (−4.37, −1.67) | −2.88 (−4.16, −1.59) |
| Lim et al. (2007) | 7 | 32 | 7.94 | 9 | 48 | 12.00 | −1.53 (−2.65, −0.41) | −1.45 (−2.51, −0.39) |
| Xie and Yu (2007) | 6 | 30.3 | 2.70 | 6 | 48.8 | 5.50 | −4.27 (−6.32, −2.22) | −3.94 (−5.83, −2.05) |
| Ikeda et al. (2006) | 5 | 27.4 | 9.84 | 8 | 45 | 9.90 | −1.78 (−3.09, −0.47) | −1.66 (−2.88, −0.44) |
| Wang et al. (2006) | 8 | 24 | 2.00 | 8 | 44 | 4.00 | −6.32 (−8.73, −3.92) | −5.98 (−8.25, −3.71) |
| Argaud et al. (2005a) | 10 | 24 | 12.65 | 10 | 60 | 18.97 | −2.23 (−3.35, −1.12) | −2.14 (−3.21, −1.07) |
| Argaud et al. (2005a) | 10 | 24 | 12.65 | 10 | 60 | 18.97 | −2.23 (−3.35, −1.12) | −2.14 (−3.21, −1.07) |
| Krolikowski et al. (2005) | 7 | 43 | 6.00 | 8 | 42 | 7.00 | 0.15 (−0.86, 1.17) | 0.14 (−0.81, 1.10) |
| Krolikowski et al. (2005) | 7 | 24 | 3.00 | 8 | 42 | 7.00 | −3.26 (−4.80, −1.71) | −3.07 (−4.52, −1.61) |
| Argaud et al. (2004) | 12 | 24 | 13.86 | 12 | 55 | 27.71 | −1.41 (−2.31, −0.52) | −1.37 (−2.23, −0.50) |
| Argaud et al. (2004) | 9 | 26 | 18.00 | 12 | 55 | 27.71 | −1.20 (−2.14, −0.27) | −1.15 (−2.06, −0.25) |
| Argaud et al. (2004) | 7 | 24 | 15.87 | 12 | 55 | 27.71 | −1.28 (−2.30, −0.26) | −1.22 (−2.20, −0.25) |
| Argaud et al. (2004) | 7 | 25 | 13.23 | 12 | 55 | 27.71 | −1.27 (−2.28, −0.25) | −1.21 (−2.18, −0.24) |
| Niemann et al. (2002) | 4 | 35.08 | 25.84 | 4 | 58.15 | 11.08 | −1.16 (−2.66, 0.34) | −1.01 (−2.31, 0.29) |
| Niemann et al. (2002) | 4 | 23.54 | 27.24 | 4 | 58.15 | 11.08 | −1.66 (−3.27, −0.06) | −1.45 (−2.85, −0.05) |
| Niemann et al. (2002) | 4 | 13.62 | 11.08 | 4 | 58.15 | 11.08 | −4.02 (−6.43, −1.61) | −3.49 (−5.59, −1.40) |
| Niemann et al. (2002) | 4 | 16.62 | 14.30 | 4 | 58.15 | 11.08 | −3.25 (−5.36, −1.14) | −2.82 (−4.66, −0.99) |
| Squadrito et al. (1999) | 6 | 12 | 4.00 | 6 | 57 | 7.00 | −7.89 (−11.25, −4.54) | −7.29 (−10.38, −4.19) |
| Karlsson et al. (2010) | 12 | 49.2 | 13.89 | 15 | 41.14 | 15.94 | 0.53 (−0.24, 1.31) | 0.52 (−0.23, 1.27) |
| Lie et al. (2010) | 19 | 47.3 | 15.70 | 19 | 51.4 | 16.50 | −0.25 (−0.89, 0.38) | −0.25 (−0.87, 0.38) |
| Boengler and Hilfiker-Kleiner (2010) | 10 | 25.4 | 6.96 | 7 | 25.5 | 4.76 | −0.02 (−0.98, 0.95) | −0.02 (−0.93, 0.90) |
| Skychally et al. (2010) | 4 | 24.52 | 6.82 | 4 | 35.15 | 7.34 | −1.50 (−3.07, 0.07) | −1.30 (−2.67, 0.06) |
| Dow and Kloner, 2007 | 4 | 42 | 6.00 | 10 | 27 | 12.65 | 1.32 (0.06, 2.58) | 1.24 (0.06, 2.41) |
| Dow and Kloner, 2007 | 8 | 38 | 11.31 | 10 | 27 | 12.65 | 0.91 (−0.07, 1.89) | 0.87 (−0.06, 1.80) |
| Matsubara et al. (2010) | 6 | 39.1 | 4.16 | 7 | 53.4 | 23.81 | −0.80 (−1.94, 0.33) | −0.75 (−1.80, 0.31) |
| Matsubara et al. (2010) | 4 | 39.6 | 3.60 | 7 | 53.4 | 23.81 | −0.71 (−1.97, 0.56) | −0.65 (−1.80, 0.51) |
CI = confidence interval.