| Study | Reason for exclusion |
|---|---|
| Anjalakshi 200 | Not correct outcomes for this review. |
| Bevier 1999 | Not predetermined population; those studied had normal OGTT results. |
| Bonomo 2004 | Not correct population for this review. |
| Bonomo 2005 | Used 50 g glucose challenge test. Not correct population for this review. |
| Brankston 2004 | Not correct intervention for this review ‐ comparing exercise. |
| Buchanan 1994 | Not correct population for this review. Population studied were those with a fetal abdominal circumference above 75th centile. |
| Bung 1991 | Not correct diagnostic criteria for this review. Eligibility was based on persistent fasting plasma glucose at values not matching those specified for this review (5.8 mM‐7.22 mM). |
| Coustan 1978 | Not truly randomised. First 20 women were assigned treatment based on gestation. |
| Cypryk 2007 | Outcomes measures used not under outcomes considered by this review. |
| De Veciana 2002 | Not predetermined population or intervention for this review. |
| Di Cianni 2007 | Compares two types of insulin (short acting versus regular insulin). |
| Dornhorst 1989 | No data available. |
| Dunne 2001 | No published or unpublished information on this trial, unable to trace author. |
| Garner 1997 | Not diagnostic criteria specified for this review. This study used 2‐hour upper limits of 7.5 mmol/l for women in 2nd trimester and 9.6 mmol/l for women in 3rd trimester. |
| Gillmer 1986 | Diagnosis by 50 g OGTT. Not randomised. |
| Graham 2005 | Not predetermined intervention for this review (Cinnamon). |
| Homko 2002 | Eligibility criteria: all women underwent a 3‐hour OGTT and needed to have 2 abnormal values based on the Carpenter‐Coustan criteria but a normal FBS (< 95 mg/dl). |
| Hopp 1996 | Diagnosis by 50 g OGTT. |
| Ilic 1999 | Outcomes measures used not under outcomes considered by this review. |
| Jovanovic 1999 | Not correct intervention for this review ‐ comparing regular human insulin with insulin lispro. |
| Jovanovic‐Peterson 1989 | Not truly randomised, inadequate baseline comparability of groups. |
| Jovanovic‐Peterson 1993 | Not an intervention predetermined by this review. |
| Kitzmiller 1990 | Informed by author that trial never started (March 2006). |
| Kjos 2001 | Inclusion based on 1 fasting glucose result. Therefore not the correct inclusion criteria for this review. |
| Langer 1994 | Not randomised. |
| Langer 2000 | Eligibility criteria: fasting glucose of more than 5.3. |
| Lao 2001 | Correspondence, not a study. |
| Lauszus 2001 | Not the correct outcomes for this review. |
| Lesser 1996 | Crossover design. |
| Li 1987 | Not true randomisation. |
| Li 1999 | Not randomised ‐ allocation by consent to treatment. |
| Magee 1990 | Not predetermined outcomes and specific to obese women. |
| Mecacci 2003 | Not correct intervention for this review ‐ comparing 2 types of insulin. |
| MRC 1955 | Not correct population for this review. |
| Nolan 1984 | Crossover design, no control group. |
| Nor Azlin 2007 | Not correct intervention for this review. Comparing 2 types of insluin (short vs inetrmediate acting). No diagnostic criteria specified. |
| Notelovitz 1971 | Population includes established diabetics ‐ impossible to distinguish between established and gestational in the data. |
| O'Sullivan 1971 | Not randomised, alternate allocation. |
| O'Sullivan 1974 | Primary outcome death. No details of randomisation, no intention‐to‐treat analysis. Endpoints unclear. |
| O'Sullivan 1980 | Not randomised. |
| Pardi 1989 | Study not completed, insufficient data collected to analyse. |
| Persson 1985 | Raw data no longer available for analysis. |
| Pettitt 2003 | Not correct outcomes measures. |
| Pettitt 2007 | Not correct intervention for this review ‐ comparing 2 types of insulin. Not correct diagnostic crietria. |
| Polyhonen‐Alho 2002 | Not correct diagnostic criteria for this review. Diagnosis of GD was made on the following values: fasting 4.8 mmol/l, 2‐hour 8.7 mmol/l. |
| Rae 2000 | Incorrect population for this review ‐ obese women only. |
| Reader 2006 | Cluster RCT. Diagnostic criteria not specified. |
| Reece 1995 | Diagnosis of gestational diabetes not clearly defined. HbA1c levels only given for IDDM. |
| Rey 1995 | Review criteria not met. This was a study of a sweet breakfast screening test therefore, not the appropriate diagnostic criteria for this review. |
| Rey 1997 | Not correct diagnostic criteria for this review. Some participants were included in the study following 50 g glucose screen. OGTT diagnostic values used did not match the criteria for this review. |
| Rossi 2000 | Not correct diagnostic criteria for this review. This study diagnosed GD by the following values: fasting 95 mg/dl, 1‐hour 180 mg/dl, 2‐hour 155 mg/dl, 3‐hour 140 mg/dl. |
| Schaefer‐Graf 2004 | Not correct population for this review. |
| Schuster 1998 | Incorrect population. |
| Silva 2005 | Not predetermined diagnostic criteria of GDM. |
| Snyder 1998 | Eligibility was by OGTT results or 50 g screening test ‐ 50 g screening test not correct eligibility criteria for this review. |
| Thompson 1990 | Gestational diabetes and IGT not divided. Unable to separate data. |
| Todorova 2007 | Economic analysis. |
| Yang 2003 | Attrition rate of 50%. |
FBS: fasting blood sugar GD: gestational diabetes IDDM: insulin‐dependent diabetes mellitus IGT: impaired glucose tolerance OGTT: oral glucose tolerance test RCT: randomised controlled trial vs: versus