Table 3.
Summary of Findings from 14 Meta-Analyses of the Relationship Between Pre-Pregnancy and Early Pregnancy Physical Activity and Risk of Gestational Diabetes Mellitus
| Author, year | Study Design | Effect (95% CI) |
|---|---|---|
| PRE-PREGNANCY PHYSICAL ACTIVITY | ||
| Aune, 2016 | Cohort (N=8) | sRR=0.78 (0.61-1.00) |
| Tobias, 2011 | RCT (N=7) | pOR=0.45 (0.28-0.75) |
| EARLY PREGNANCY PHYSICAL ACTIVITY | ||
| iWIP Collaborative Group, 2017* | RCT (N=10) | OR=0.67 (0.46 to 0.99) |
| Aune, 2016 | Cohort (N=5) RCT (N=12) Combined (N=17) |
sRR=0.97 (0.73-1.28) sRR=0.69 (0.50-0.96) sRR=0.80 (0.64-1.00) |
| DaSilva, 2017 | Cohort (N=6) RCT (N=10) |
sOR=0.75 (0.55-1.01) sOR=0.67 (0.49-0.92) |
| DiMascio, 2016 | RCT (N=4) | sRR=0.51 (0.31-0.82) |
| Han, 2011 | RCT (N=3) | sRR=1.10 (0.66-1.84) |
| Mudhravdata, 2015 | RCT (N=3) | pOR=0.77 (0.33-1.79) |
| Oostdam, 2011 | RCT (N=3) | risk difference= −0.05 (−0.20-0.10) |
| Russo, 2015 | RCT (N=10) | sRR=0.72 (0.58-0.91) |
| Sanabria-M, 2015 | RCT (N=8) | sRR=0.69 (0.52-0.91) |
| Song, 2016 | RCT (N=10) | sRR=0.77 (0.54-1.09) |
| Tobias, 2011 | RCT (N=5) | pOR=0.76 (0.70-0.83) |
| Yin, 2014 | RCT (N=6) | sRR=0.91 (0.57-1.44) |
| Yu, 2017 | RCT (N=5) | SMD=0.59 (0.39-0.88) |
| Zheng, 2017 | RCT (N=4) | SMD=0.62 (0.43-0.89) |
Note: Studies with statistically significant findings are in bold type.
*
Identified in the updated search. CI = confidence interval; OR= odds ratio; RCT = randomized controlled trial; sRR=standardized relative risk, sOR=standardized odds ratio, pOR=pooled odds ratio, and SMD=standardized mean difference.