Table 2. Demographic information for women included in the meta-analysis.
| First author | Country | Gestational age (weeks) at randomisation | Maternal age (years) at randomisation | BMI (kg/m2) at randomisation | Gestational age at entry (weeks) |
|---|---|---|---|---|---|
| Arshad (2017) | Egypt | 12–24 | M: 29.8 ± 3.4; I: 31.6 ± 4.3 | Not recorded | Not recorded |
| Ashoush (2016) | Pakistan | 22–36 | M: 31.6 ± 2.8; I: 32.1 ± 3.2 | M: 31.3 ± 1.3; I: 31.4 ± 1.5 | M: 29.8 ± 1.4; I: 29.7 ± 1.9 |
| Barrett (2013) | Australia | 22–33 | M: 33.3 (32.6–34); I: 32.9 (32.2–33.5) | M: 34.5 (33.5–35.5); I: 33.8 (32.8–34.8) | Not recorded |
| Battin (2015) | Australia | 22–33 | Not recorded | Not recorded | Not recorded |
| Bertini (2005) | Brazil | 11–33 | G: 31.2 ± 4.5; I: 28.7 ± 6.0 | G: 27.5 ± 5.8; I: 27. ± 7.2 | Not recorded |
| Borg (2016) | Egypt | 22–36 | M: 25 ± 4.6; I: 30 ± 4.0 | M: 22.5 ± 4.9; I: 23.5 ± 3.7 | Not recorded |
| Hassan (2012) | Pakistan | 20–36 | M: 30.3 ± 3.0; I: 30.9 ± 3.6 | M: 29.2 ± 1.9; I: 28.7 ± 2.7 | M: 29.5 ± 1.3; I: 29.2 ± 1.5 |
| Ijas (2011) | Finland | 12–34 | M: 32.3 ± 5.6; I: 31.7 ± 5.6 | M: 31.5 ± 6.5; I: 30.8 ± 5.4 | Not recorded |
| Ijas (2015) | Finland | 12–34 | M: 32.1 ± 5.1; I: 31.9 ± 6.2 | M: 31 ± 6.2; I: 30.6 ± 5.4 | M: 30 ± 4.5; I: 30.4 ± 4.1 |
| Khan (2017) | Pakistan | Not recorded | M: 24.9 ± 2.6; I: 28 ± 2.5 | M: 22 ± 3; I: 23.8 ± 2.8 | Not recorded |
| Lain (2009) | US | 24–33 | G: 32.2 ± 5.0; I: 31.2 ± 5.9 | G: 33.4 ± 12.9; I: 30.9 ± 5.7 | Not recorded |
| Langer (2000) | US | 11–33 | G: 29.0 ± 7.0; I: 30.0 ±6.0 | Not recorded | G: 24.0 ± 7.0; I: 25.0 ± 7.0 |
| Mirzamoradi (2013) | Iran | 24–36 | G: 29.5 ± 4.1; I: 31.2 ± 5.0 | Not recorded | Not recorded |
| Moore (2007) | Mexico | 20–34 | Not recorded | Not recorded | Not recorded |
| Moore (2010) | Mexico | 11–33 | M: 31 ± 7.1; G: 29.6 ± 7.8 | M: 32.8 ± 5.8; G: 32.7 ± 7.0 | M: 27.3 ± 7; G: 29.1 ± 5 |
| Mukhopadhyay (2012) | India | 20–28 | G: 26.3 ± 4.6; I: 26.0 ± 4.3 | G: 23.7 ± 2.7; I: 23.0 ± 2.9 | G: 28.3 ± 2.2; I: 27.4 ± 2.7 |
| Niromanesh (2012) | Iran | 20–34 | M: 30.7 ± 5.5; I: 31.8 ± 5.1 | M: 28.1 ± 4.0; I: 27.1 ± 2.1 | M: 28.7 ± 3.7; I: 28.6 ± 3.6 |
| Rowan (2008) | Australia | 22–33 | M: 33.5 ± 5.4; I: 33.0 ± 5.1 | M: 35.1 ± 8.3; I: 34.6 ± 7.2 | M: 30.2 ± 3.3; I: 30.1 ± 3.2 |
| Rowan (2011) | Australia | 22–33 | M: 39.4 ± 5.4; I: 38.9 ± 5.0 | M: 33.4 ± 12; I: 31.6 ± 10.0 | M: 30.4 ± 3.3; I: 30.0 ± 3.3 |
| Rowan (2018) | Australia | 22–33 | Not recorded | Not recorded | Not recorded |
| Saleh (2016) | Egypt | 26–34 | M: 31.0 ± 3.4; I: 29.8 ± 2.2 | M: 30.5 ± 3.1; I: 31.6 ± 3.1 | M: 27.3 ± 3.5; I: 29.3 ± 3.1 |
| Senat(2018) | France | 24–34 | G: 32.5 ± 5.1; I: 32.6 ± 5.3 | G: 30.7 ± 5.1; I: 31.1 ± 5.4 | Not recorded |
| Silva (2007) | Brazil | 11–33 | G: 31.6 ± 4.2; I: 29.9 ± 6.0 | Not recorded | Not recorded |
| Silva (2010) | Brazil | 11–33 | M: 33.6 ± 5.8; G: 31.5 ± 5.4 | Not recorded | M: 26.8 ± 6; G: 25.6 ± 6.4 |
| Silva (2012) | Brazil | 11–33 | M: 31.3 ± 5.4; G: 32.6 ± 5.6 | M: 28.7 ± 5.4; G: 28.6 ± 5.9 | M: 25.4 ± 7; G: 26.9 ± 6.4 |
| Somani (2016) | India | 24–34 | M: 25.6 ± 4.7; I: 26.3 ± 3.8 | Not recorded | M: 27.8 ± 2.5; I: 28.3 ± 2.6 |
| Spaulonci (2013) | Brazil | 24–28 | M: 31.9 ± 6.0; I: 32.8 ± 4.7 | M: 32.0 ± 4.8; I: 34.1 ± 5.7 | M: 32.2 ±3.7; I: 32.0 ± 3.5 |
| Tempe (2013) | India | 22–34 | Not recorded | Not recorded | Not recorded |
| Tertti (2013) | Finland | 22–34 | M: 31.5 ± 5.0; I: 32.1 ± 5.4 | M: 29.4 ± 5.9; I: 28.9 ± 4.7 | M: 30.3 ± 2; I: 30.4 ± 2 |
| Tertti (2014) | Finland | 22–34 | Not recorded | Not recorded | Not recorded |
| Tertti (2015) | Finland | 22–34 | Not recorded | M: 32.3 ± 5.2; I: 31.7 ± 5.0 | Not recorded |
| Tertti (2016) | Finland | 22–34 | Not recorded | Not recorded | Not recorded |
| Wouldes (2016) | Australia | 22–33 | Not recorded | Not recorded | Not recorded |
All outcomes signified with plus-minus sign ‘±’ are SD; outcomes signified with parentheses ‘()’ are 95% CI.
Abbreviations: CI, confidence interval; G, glyburide; I, insulin; M, metformin