Table.
Outcome of pregnancy in Mauritius, 1993-6, according to diagnostic category of glucose intolerance. Values are number (percentage) unless otherwise indicated
| Pregestational diabetes | Gestational diabetes | Gestational impaired glucose tolerance | Background population | |
|---|---|---|---|---|
| Perinatal mortality per 1000 births | 124 | 116 | 22 | 26 |
| Relative risk (95% CI) | 4.7 (2.7 to 8.2) | 4.4 (2.5 to 7.9) | 0.8 (0.2 to 3.3) | |
| Stillbirth per 1000 births | 67 | 81 | 11 | 14 |
| Relative risk (95% CI) | 4.8 (2.2 to 10.3) | 5.7 (2.8 to 11.7) | 0.8 (0.1 to 5.4) | |
| Early neonatal mortality per 1000 live births | 60 | 38 | 11 | 12 |
| Relative risk (95% CI) | 4.9 (2.1 to 11.6) | 3.1 (1.0 to 9.4) | 0.9 (0.1 to 6.3) | |
| Mean (SD) birthweight (g) | 3059 (641) | 3293 (714) | 3083 (603) | 2953 (567) |
| P value (v background population) | NS | 0.001 | 0.05 | |
| Macrosomia (⩾4000 g) | 7 (8) | 14 (16) | 6 (7) | 147 (3) |
| Relative risk (95% CI) | 2.4 (1.2 to 4.9) | 4.9 (3.0 to 8.1) | 2.0 (0.9 to 4.3) | |
| P value (v background population) | 0.05 | 0.001 | NS | |
| Mean (SD) gestational age (weeks) | 37.0 (2.4) | 37.7 (2.3) | 38.5 (1.8) | NA |
| P value (v pregestational diabetes/gestational diabetes) | NS | 0.05 | 0.001/0.05 | |
| Prematurity (<37 weeks) | 33 (37) | 19 (22) | 10 (11) | NA |
| P value (v pregestational diabetes/gestational diabetes) | NS | 0.05 | 0.001/0.05 | |
| Caesarean section | 51 (58) | 49 (57) | 40 (43) | 16 |
| P value (v background population) | 0.001 | 0.001 | 0.001 | |
| Hypoglycaemia in infant (<1.7 mmol/l) | 17 (21) | 11 (14) | 4 (4) | NA |
| P value (v gestational impaired glucose tolerance) | 0.001 | 0.05 | NS | |
| Hyperbilirubinaemia in infant | 28 (35) | 30 (39) | 19 (21) | NA |
| P value (v gestational impaired glucose tolerance) | 0.05 | 0.05 | NS |
NA=data not available.NS=not significant.