Table 3. Adjusted Hazard Ratios ¹ for CVD Hospitalisation in Adulthood in Relation to Specific Clinical Category of Infection-Related Childhood Hospitalisations.

Infection subgroup	Cases% [n] (631)	Controls% [n] (6310)	HR 1 , 2	95%CI	P-value
Lower respiratory tract infection
0	90.0 [568]	94.9 [5990]
1	7.0 [44]	4.1 [260]	1.17	0.9–1.6	0.33
2+	3.0 [19]	1.0 [60]	1.50	0.93–2.4	0.10
Gastro-intestinal infection
0	81.8 [516]	90.5 [5710]
1	10.3 [65]	7.5 [476]	0.92	0.7–1.2	0.57
2+	7.9 [50]	2.0 [124]	1.42	1.0–1.9	0.03
Upper respiratory tract infection
0	78.3 [494]	88.3 [5574]
1	14.7 [93]	9.2 [582]	1.42	1.1–1.8	0.002
2+	7.0 [44]	2.5 [154]	1.65	1.2–2.3	0.003
Urinary tract infection
0	95.10 [600]	99.0 [6248]
1	3.2 [20]	0.9 [55]	2.0	1.3–3.2	0.006
2+	1.7 [11]	0.1 [7]	4.2	2.3–7.7	<0.001
Other viral infection
0	88.3 [579]	95.4 [6017]
1	9.8 [45]	4.2 [266]	1.35	1.0–1.8	0.05
2+	1.9 [7]	0.4 [27]	1.55	0.7–3.3	0.25
Skin and soft tissue infection
0	86.9 [548]	96.6 [6095]
1	8.4 [53]	2.7 [172]	1.54	1.1–2.1	0.005
2+	4.8 [30]	0.7 [43]	2.09	1.4–3.1	<0.001

¹ Hazard ratios are adjusted for year of birth, sex and Indigenous status.

² Reference group is 0 hospitalisations, for each infection subgroup.