Table 2 Subgroup analysis and meta-regression of factors for excessive gestational weight gain
From: Determinants of excessive gestational weight gain: a systematic review and meta-analysis
Factors | Subgroups | Group standard | Number | Z | P value | I2 | Tau2 | OR (95%CI) | Meta-regression |
|---|---|---|---|---|---|---|---|---|---|
Educational level | Years |  ≤ 2015 | 9 | 0.40 | 0.001* | 95.7 | 0.0420 | 1.04 (0.87,1.24) | P = 0.693 |
 > 2015 | 9 | 0.55 | 0.001* | 83.6 | 0.2082 | 1.10 (0.78,1.56) | |||
Types | Cross-sectional study | 5 | 1.14 | 0.017 | 66.7 | 0.1376 | 0.78 (0.50,1.20) | P = 0.020 | |
Cohort study | 13 | 1.93 | 0.001* | 93.9 | 0.0414 | 1.16 (1.00,1.34) | |||
Region | Africa and Asia | 7 | 0.32 | 0.001* | 87.4 | 0.1764 | 1.06 (0.75,1.49) | P = 0.983 | |
Europe and America | 11 | 0.67 | 0.001* | 94.6 | 0.0427 | 1.06 (0.89,1.27) | |||
Pregnancy BMI with overweight | Years |  ≤ 2015 | 12 | 6.99 | 0.001* | 98.6 | 0.1126 | 2.25 (1.79,2.94) | P = 0.271 |
 > 2015 | 11 | 10.20 | 0.027 | 50.7 | 0.0544 | 2.82 (2.31,3.44) | |||
Region | Africa and Asia | 11 | 4.15 | 0.001* | 89.0 | 0.3660 | 2.28 (1.54,3.36) | P = 0.270 | |
Europe and America | 12 | 9.21 | 0.001* | 98.4 | 0.0985 | 2.78 (2.24,3.46) | |||
Types | Cohort study | 13 | 7.78 | 0.001* | 98.4 | 0.1744 | 2.74 (0.75,3.54) | P = 0.640 | |
Case–control study | 4 | 1.77 | 0.001* | 83.2 | 0.2764 | 1.70 (0.95,3.04) | |||
Cross-sectional study | 6 | 6.25 | 0.04 | 57.0 | 0.0702 | 2.65 (1.95,3.59) |