Background
Methods
Participants and study design
OGTT specimen collection and processing
Plasma glucose level detection
Diagnostic criteria of GDM according to the International Association of Diabetes and Dignity Study Group (IADPSG)
Statistical methods
Results
Distribution of GDM prevalence in different years
Year | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | Total |
---|---|---|---|---|---|---|---|---|
GDM (n)
| 3,273 | 5,563 | 4,736 | 5,605 | 7,190 | 5,387 | 5,940 | 37,694 |
Cases (n)
| 13,597 | 21,874 | 22,176 | 23,626 | 26,723 | 22,114 | 22,726 | 152,836 |
GDM prevalence (%)
| 24.07 | 25.43 | 21.36 | 23.72 | 26.91 | 24.36 | 26.14 | 24.66 |
Distribution of GDM prevalence according to age
Age (years) | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | Total |
---|---|---|---|---|---|---|---|---|
18–25
| 15.44 | 16.89 | 12.13 | 14.92 | 19.32 | 17.08 | 19.25 | 16.38 |
(326/2112) | (398/2357) | (274/2259) | (361/2420) | (498/2578) | (305/1786) | (346/1797) | (2508/15,309) | |
26–30
| 22.31 | 22.62 | 17.81 | 20.99 | 23.79 | 20.97 | 22.33 | 21.59 |
(1585/7104) | (2627/11,612) | (1957/10,986) | (2502/11,918) | (3263/13,716) | (2243/10,698) | (2408/10,783) | (16,585/76,817) | |
31–35
| 29.98 | 30.27 | 25.45 | 27.57 | 30.42 | 27.38 | 29.67 | 28.62 |
(1008/3362) | (1797/5936) | (1648/6475) | (1953/7085) | (2462/8093) | (2094/7649) | (2418/8150) | (13,380/46,750) | |
36–42
| 34.74 | 37.63 | 34.89 | 35.81 | 41.40 | 37.61 | 38.48 | 37.40 |
(354/1019) | (741/1969) | (857/2456) | (789/2203) | (967/2336) | (745/1981) | (768/1996) | (5221/13,960) | |
χ
2
for trend
/
P
|
223.862/0.000
|
364.633/0.000
|
521.478/0.000
|
386.050/0.000
|
422.022/0.000
|
327.569/0.000
|
320.194/0.000
|
2527.000/0.000
|
χ
2
/
P
|
225.900/0.000
|
367.000/0.000
|
529.300/0.000
|
388.600/0.000
|
443.400/0.000
|
344.700/0.000
|
335.100/0.000
|
2568.000/0.000
|
Proportion of pregnant women with GDM according to age and year
Age (years) | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | χ2 /P | χ2 for trend /P |
---|---|---|---|---|---|---|---|---|---|
18 – 25
| 15.53 | 10.78 | 10.19 | 10.24 | 9.65 | 8.08 | 7.91 |
303.7
|
183.279
|
(2112/13,597) | (2357/21,874) | (2259/22,176) | (2420/23,626) | (2578/26,723) | (1786/22,114) | (1797/22,726) |
0.000
|
0.000
| |
26 – 30
| 52.25 | 53.09 | 49.54 | 50.44 | 51.33 | 48.38 | 47.45 |
66.951
|
33.192
|
(7104/13,597) | (11,612/21,874) | (10,986/22,176) | (11,918/23,626) | (13,716/26,723) | (10,698/22,114) | (10,783/22,726) |
0.000
|
0.000
| |
31– 35
| 24.73 | 27.14 | 29.20 | 29.99 | 30.28 | 34.59 | 35.86 |
141.5
|
134.436
|
(3362/13,597) | (5936/21,874) | (6475/22,176) | (7085/23,626) | (8093/26,723) | (7649/22,114) | (8150/22,726) |
0.000
|
0.000
| |
36– 42
| 7.49 | 9.00 | 11.08 | 9.32 | 8.74 | 8.96 | 8.78 |
135.2
|
44.403
|
(1019/13,597) | (1969/21,874) | (2456/22,176) | (2203/23,626) | (2336/26,723) | (1981/22,114) | (1996/22,726) |
0.000
|
0.000
|
Composition of different GDM types
GDM types | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | Total | χ2 /P | χ2 trend /P | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|
FPG | 1hPG | 2hPG | ||||||||||
+
|
-
|
-
| 51.79 | 46.54 | 40.10 | 43.94 | 50.07 | 48.45 | 45.98 | 46.66 |
174.80
| 0.556 |
(1695/3273) | (2589/5563) | (1899/4736) | (2463/5605) | (3600/7190) | (2610/5387) | (2731/5940) | (17,587/37,694) |
0.000
| 0.456 | |||
+
|
-
|
+
| 5.68 | 5.57 | 5.22 | 4.80 | 5.08 | 5.36 | 5.39 | 5.27 | 5.454 | 0.435 |
(186/3273) | (310/5563) | (247/4736) | (269/5605) | (365/7190) | (289/5387) | (320/5940) | (1986/37,694) | 0.487 | 0.510 | |||
+
|
+
|
-
| 7.36 | 7.08 | 8.07 | 9.24 | 7.83 | 8.98 | 7.66 | 8.06 |
27.899
|
3.547
|
(241/3273) | (394/5563) | (382/4736) | (518/5605) | (563/7190) | (484/5387) | (455/5940) | (3037/37,694) |
0.000
|
0.060
| |||
+
|
+
|
+
| 10.11 | 10.70 | 11.68 | 11.42 | 11.00 | 11.06 | 11.85 | 11.17 | 9.571 |
3.943
|
(331/3273) | (595/5563) | (553/4736) | (640/5605) | (791/7190) | (596/5387) | (704/5940) | (4210/37,694) | 0.144 |
0.047
| |||
-
|
-
|
+
| 10.85 | 13.41 | 14.61 | 12.44 | 11.53 | 10.04 | 10.77 | 11.94 |
75.890
|
27.256
|
(355/3273) | (746/5563) | (692/4736) | (697/5605) | (829/7190) | (541/5387) | (640/5940) | (4500/37,694) |
0.000
|
0.000
| |||
-
|
+
|
-
| 7.97 | 9.20 | 11.06 | 10.53 | 8.61 | 9.95 | 10.45 | 9.72 |
41.056
|
4.879
|
(261/3273) | (512/5563) | (524/4736) | (590/5605) | (619/7190) | (536/5387) | (621/5940) | (3663/37,694) |
0.000
|
0.027
| |||
-
|
+
|
+
| 6.23 | 7.50 | 9.27 | 7.64 | 5.88 | 6.14 | 7.90 | 7.19 |
69.273
| 1.577 |
(204/3273) | (417/5563) | (439/4736) | (428/5605) | (423/7190) | (331/5387) | (469/5940) | (2711/37,694) |
0.000
| 0.209 |