Study | Year | Country | No of case | No of control | Diagnose criteriab | Gestational age at blood sampling | Test | BMIc | RBP4(μg/ml)d | P-value | |
---|---|---|---|---|---|---|---|---|---|---|---|
Case | Control | ||||||||||
Chan a [16] | 2007 | China, Han | 20 | 20 | NDDG | 24–28 weeks | ELISA | Matched | 0.0424 ± 0.0138 | 0.0320 ± 0.0087 | 0.007 |
Chan b [16] | 2007 | China, Han | 20 | 20 | NDDG | immediately after delivery | ELISA | Matched | 0.0301 ± 0.0110 | 0.0309 ± 0.0100 | 0.811 |
Kim [17] | 2008 | South Korea | 10 | 9 | ADA | 24–28 weeks | ELISA | P > 0.05 | 39.1 ± 6.3 | 30.0 ± 10.0 | 0.026 |
Lewandowskia[19] | 2008 | Austria | 15 | 35 | ADA | 28 weeks | Unclear | Matched | 53.9 ± 18.7 | 34.4 ± 12.4 | <0.001 |
Sun [20] | 2009 | China, Han | 32 | 30 | OGTT confirmed | 24 h before delivery | ELISA | Matched | 27.0 ± 1.2 | 19.4 ± 1.8 | <0.001 |
Klein a [21] | 2010 | Austria, Caucasian | 63 | 38 | ADA | 24–28 weeks | ELISA | Matched | 18.0 ± 3.7 | 16.9 ± 5.1 | 0.213 |
Klein b [21] | 2010 | Austria, Caucasian | 63 | 38 | ADA | 33 weeks | ELISA | Matched | 20.3 ± 7.2 | 17.9 ± 6.1 | 0.089 |
Su [23] | 2010 | China, Han | 63 | 58 | ADA | 24–28 weeks | ELISA | Matched | 41.6 ± 12.2 | 34.5 ± 9.8 | <0.001 |
Tepper [24] | 2010 | USA, mixed | 12 | 10 | ADA | 24–28 weeks | EIA | Matched | 25.2 ± 2.1 | 25.2 ± 2.1 | 1.000 |
Kuzmicki aa[26] | 2011 | Poland | 68 | 68 | WHO | 24–30 weeks | EIA | P > 0.05 | 58.1 ± 25.3 | 51.0 ± 18.1 | 0.062 |
Kuzmicki ba[26] | 2011 | Poland | 20 | 18 | WHO | 36–40 weeks | EIA | P > 0.05 | 62.4 ± 31.0 | 42.9 ± 19.0 | 0.027 |
Chen [25] | 2011 | China, Han | 52 | 46 | NDDG | before delivery | ELISA | Matched | 31.93 ± 7.21 | 26.92 ± 8.5 | 0.002 |
Ping [12] | 2012 | China, Han | 74 | 69 | ADA | 24–28 weeks | ELISA | P > 0.05 | 21.53 ± 5.96 | 20.84 ± 4.31 | <0.001 |
Skvarcaa [28] | 2012 | Slovenia | 30 | 44 | ADA | 26.81 ± 3.46 weeks | ELISA | P > 0.05 | 15.00 ± 6.11 | 15.57 ± 8.35 | 0.750 |
Liang [31] | 2014 | China, Han | 35 | 35 | NDDG | 24–28 weeks | ELISA | P > 0.05 | 22.90 ± 3.09 | 17.90 ± 3.91 | <0.001 |
Fruscalzo [32] | 2015 | Germany, mixed | 32 | 44 | ADA | 11–13 weeks | ELISA | P > 0.05 | 24.78 ± 6.51 | 27.93 ± 7.98 | 0.071 |
Du [33] | 2015 | China | 38 | 38 | NDDG | 37–42 weeks | ELISA | Matched | 39.08 ± 8.29 | 21.42 ± 3.85 | <0.001 |