Table 1

Ratio between observed live births and expected live births (O/E) of children who later developed diabetes Data are given in relation to the total number of children, the different age groups, between boys and girls, and between children who were infected and not infected 0–3 months before diagnosis

Birth month		Live births			O/E (all children)			Live births			O/E (0–4 years)			Live births			O/E (5–9 years)			Live births			O/E (10–15 years)		O/E infected		Not infected
Birth month		Total	D		Total	M	F		Total	D		Total	M	F		Total	D		Total	M	F		Total	D	O/E infected		Not infected			Total	M	F
1	40202	99		0.99	0.91	1.09		24592	16		1.00	0.67	1.42		28507	36		1.09	1.05	1.21		31746	47		0.87	0.87	0.91	0.97	0.94
2	40385	105		1.04	1.05	1.02		26086	23		1.35	1.10	1.71		28507	23		1.00	0.67	0.78		31764	59		1.11	1.23	0.96	1.23	0.90
3	47494	117		0.98	1.07	0.86		30342	24		1.20	1.36	1.00		33560	33		0.85	0.95	0.71		36169	60		1.00	1.05	0.92	1.04	0.98
4	48923	115		0.94	1.07	0.78		29785	20		1.00	1.80	0.78		33230	46		1.20	1.28	1.11		38027	49		0.78^†	0.92	0.57^†	0.78	1.03
5	46453	108		0.93	0.92	0.94		28601	17		0.89	1.09	0.63		31632	39		1.05	1.10	1.06		35819	52		0.87	0.79	0.96	0.95	0.90
6	42405	110		1.04	0.98	1.10		26396	24		1.33	1.20	1.50		28952	30		0.90	0.94	0.87		32440	56		1.04	0.97	1.12	1.19	1.00
7	42161	118		1.12	1.17	1.06		26228	13		0.72	0.90	0.50		28748	35		1.06	1.16	0.93		32143	70		1.32^¶	1.30^‡	1.35^‡	1.11	1.14
8	40338	126		1.25^¶	1.24^†	1.15^‡		25172	21		1.23	1.44	1.14		28763	42		1.27	1.16	1.40		30574	63		1.23	1.23	1.18	1.28^‡	1.30
9	40843	108		1.06	1.02	1.11		25138	15		0.88	1.00	0.86		28993	42		1.23	1.27	1.27		31196	51		0.98	0.89	1.08	1.20	0.91
10	38780	64		0.661-150	0.571-150	0.79^‡		23452	10		0.62^‡	0.44	0.86		27671	24		0.75^†	0.67	0.86		30007	30		0.601-150	0.53^¶	0.68	0.451-150	0.74
11	35765	86		0.97	1.00	0.92		21608	10		0.71	0.75	0.67		25326	30		1.03	1.00	1.08		27713	46		1.00	1.08	0.90	0.87	1.14
12	35544	92		1.04	0.96	1.16		21302	13		0.93	0.88	1.00		23916	22		0.78	0.80	1.20		27345	57		1.27^‡	1.11	1.40	0.87	0.98

Table also includes the total number of live births for each month and the number of births of children who later developed diabetes (D).
↵1-150 p < 0.01; ^†p < 0.05; ^‡p = 0.1; ^¶p < 0.02.