Table 2.
Summary risk estimates of the association of LBW and premature with the risk of metabolic syndrome.
| Subgroup | No. of studies | Pooled OR (95% CI) | I2 (%) | Pheterogeneity | P-value between subgroups | |
|---|---|---|---|---|---|---|
| LBW | All studies | 11 | 1.37 (1.17–1.61) | 43.6 | 0.060 | |
| Study design | ||||||
| Cohort study | 6 | 1.79 (1.39–2.31) | 0.0 | 0.712 | 0.007 | |
| Cross-sectional study | 5 | 1.22 (1.04–1.43) | 46.1 | 0.115 | ||
| Continent | ||||||
| Asia | 3 | 1.66 (1.21–2.29) | 0.0 | 0.817 | 0.023 | |
| Europe | 5 | 1.69 (1.23–2.33) | 23.7 | 0.263 | ||
| South America | 3 | 1.18 (1.00–1.39) | 55.9 | 0.104 | ||
| Gender | ||||||
| Both | 7 | 1.37 (1.04–1.79) | 35.0 | 0.161 | 0.464 | |
| Male | 2 | 1.59 (0.58–4.38) | 79.7 | 0.026 | ||
| Female | 2 | 1.39 (1.06–1.83) | 50.7 | 0.154 | ||
| Premature | All studies | 5 | 1.48 (1.00–2.21) | 62.5 | 0.030 | |
| After excluding one study (RR >3.0) | 4 | 1.30 (1.04–1.62) | 9.5 | 0.345 | ||
| Study design | ||||||
| Cohort studies | 4 | 1.72 (1.12–2.65) | 54.5 | 0.086 | 0.043 | |
| Cross-sectional studies | 1 | 0.86 (0.52–1.42) | NA | NA | ||
CI, confidence interval; LBW, low birth weight; NA, not available; RR, relative risk.