Table 1

Characteristics of included person-time

		Working age		Elderly
		Diabetes		Diabetes		No diabetes (matched controls)
Variable	Value	N	P	N	P	N	P
Age (median, IQR)	Years	53	13.00	74	11.00	74	11.00
Sex	Male	129638	0.52	84895	0.47	127211	0.44
Sex	Female	119473	0.48	95020	0.53	161076	0.56
Income quintile	Upper	111167	0.45	77806	0.43	137303	0.48
Income quintile	Lower	137944	0.55	102109	0.57	150984	0.52
Residence	Urban	145712	0.58	108147	0.60	173204	0.60
Residence	Rural	103399	0.42	71768	0.40	115083	0.40
Medical visits*	0	145564	0.58	92265	0.51	174940	0.61
	1–2	62666	0.25	42034	0.23	60511	0.21
	3 or more	40881	0.16	45616	0.25	52836	0.18
Major ADGs†	0	109107	0.44	46630	0.26	102347	0.36
	1	74930	0.30	55893	0.31	92029	0.32
	2 or more	65074	0.26	77392	0.43	93911	0.33
Influenza vaccination‡	Yes	86222	0.35	96463	0.54	139114	0.48
Influenza vaccination‡	No	162889	0.65	83452	0.46	149173	0.52
Pneumococcal vaccination§	Yes	40020	0.16	82084	0.46	116178	0.40
Pneumococcal vaccination§	No	209091	0.84	97831	0.54	172109	0.60

Table enumerates subjects at follow-up every July. All differences between elderly adults and working-age diabetic adults p<0.001 on Wilcoxon rank sum or χ² tests.
*Number of medical visits over the previous year.
†Number of major ADGs over the previous 2 years: ADG3 (time limited: major), ADG4 (time limited: major—primary infections), ADG9 (likely to recur: progressive), ADG11 (chronic medical: unstable), ADG16 (chronic specialty: unstable—orthopaedic), ADG22 (injuries/adverse effects: major), ADG25 (psychosocial: recurrent or persistent, unstable) and ADG32 (malignancy).
‡Influenza vaccination during the previous year.
§Any previous record of pneumococcal vaccination.
IQR, inter-quartile range; N, Number of subjects; P, Proportion of subjects.