TABLE 1.
Comparison of maternal characteristics between GDM and no further testing group diagnosed by Japanese diagnostic strategy in the evolving COVID‐19 pandemic
| COVID‐19‐GDM | COVID‐19‐NFT | P‐value | ||
|---|---|---|---|---|
| (n = 104) | (n = 160) | |||
| Maternal age at delivery | (years) | 37 (23‐51) | 37 (25‐59) | .24 |
| Nulliparity | 65 (63) | 114 (71) | .14 | |
| Pre‐pregnancy BMI | (kg/m2) | 21.4 (16.4‐36.3) | 20.4 (16.4‐35.4) | <.01 |
| Underweight (BMI < 18.5 kg/m2) | 9 (9) | 24 (23) | .18 | |
| HbA1c ≥ 38 mmol/mol | 35 (34) | 0 (0) | ‐ | |
| Random glucose level ≥ 9.0 mmoL/L | 0 (0) | 0 (0) | ‐ | |
| Antepartum 75‐g OGTT | ||||
| Fasting glucose level | (mmol/l) | 5.2 (4.2‐7.7) | 4.6 (3.0‐5.1) | <.01 |
| 1‐hour glucose level | (mmol/l) | 9.7 (6.0‐14.1) | 11.4 (5.1‐13.5) | .07 |
| 2‐hours glucose level | (mmol/l) | 8.4 (4.5‐16.2) | 8.9 (6.1‐12.8) | <.01 |
| Fasting glucose level positive | 89 (86) | 0 (0) | ‐ | |
| 1‐hour glucose level positive | 40 (38) | 95 (59) | <.01 | |
| 2‐hour glucose level positive | 51 (49) | 120 (75) | <.01 |
Note: Continuous data were compared between groups using the Mann‐Whitney U test. Categorical variables were analysed using the chi‐squared test or the Fisher's exact test. Data are expressed as n (%) or median (range).
Abbreviations: BMI, body mass index; GDM, gestational diabetes; NFT, no further testing group; OGTT, oral glucose tolerance test.