Table 3.

Characteristics of children and adolescents with newly diagnosed type 1 diabetes in 2020 and 2021 by diabetic ketoacidosis status

		All individuals		No diabetic ketoacidosis		Diabetic ketoacidosis
		2020	2021	2020	2021	2020	2021
Overall dataset		8209	8853	5204 (63·4%)	5587 (63·1%)	3005 (36·6%)	3266 (36·9%)
Age, years		9·9 (6·1–12·8)	9·5 (5·9–12·6)	9·9 (6·2–12·9)	9·3 (5·8–12·7)	9·9 (6·0–12·7)	9·7 (6·0–12·6)
	Male	4521	4941	2879 (63·7%)	3139 (63·5%)	1642 (36·3%)	1802 (36·5%)
	Female	3688	3912	2325 (63·0%)	2448 (62·6%)	1363 (37·0%)	1464 (37·4%)
By age
	≥6 months to <6 years	1965	2260	1217 (61·9%)	1455 (64·4%)	748 (38·1%)	805 (35·6%)
	≥6 years to <12 years	3588	3912	2280 (63·6%)	2454 (62·7%)	1308 (36·4%)	1458 (37·3%)
	≥12 years to <18 years	2656	2681	1707 (64·3%)	1678 (62·6%)	949 (35·7%)	1003 (37·4%)
By country
	Australia	644	545	287 (44·6%)	258 (47·3%)	357 (55·4%)	287 (52·7%)
	Austria	268	288	142 (53·0%)	192 (66·7%)	126 (47·0%)	96 (33·3%)
	Czechia	461	490	323 (70·1%)	327 (66·7%)	138 (29·9%)	163 (33·3%)
	Denmark	330	330	251 (76·1%)	239 (72·4%)	79 (23·9%)	91 (27·6%)
	Germany	3379	3672	2246 (66·5%)	2411 (65·7%)	1133 (33·5%)	1261 (34·3%)
	Italy	1162	1521	653 (56·2%)	864 (56·8%)	509 (43·8%)	657 (43·2%)
	Luxemburg	26	35	17 (65·4%)	18 (51·4%)	9 (34·6%)	17 (48·6%)
	New Zealand	99	112	61 (61·6%)	60 (53·6%)	38 (38·4%)	52 (46·4%)
	Norway	453	396	323 (71·3%)	270 (68·2%)	130 (28·7%)	126 (31·8%)
	Slovenia	77	79	41 (53·3%)	44 (55·7%)	36 (46·7%)	35 (44·3%)
	Sweden	835	865	615 (73·7%)	626 (72·4%)	220 (26·3%)	239 (27·6%)
	USA*	290	315	134 (46·2%)	152 (48·3%)	156 (53·8%)	163 (51·8%)
	Wales	185	205	111 (60·0%)	126 (61·5%)	74 (40·0%)	79 (38·5%)

Data are n (%) or median (IQR), unless otherwise stated.

^*The state of Colorado, USA.