Table 3.

Age-group-specific IRRs across infections of identified patterns

Age	Infections of pattern a (male infant/child) (95% CI)	Infections of pattern b (sex-switch at puberty) (95% CI)	Infections of pattern c (general male predominance) (95% CI)	Infections of pattern d (male juveniles/adults) (95% CI)	Infections of pattern e (elderly males) (95% CI)
0–4	1.10* (1.06–1.13)	1.10* (1.09–1.11)	1.22* (1.19–1.26)	1.02 (0.88–1.18)	1.11 (0.78–1.58)
5–14	1.10* (1.05–1.15)	1.10* (1.06–1.14)	1.35* (1.26–1.44)	1.09 (0.78–1.53)	1.73 (0.65–4.65)
15–59	0.96 (0.90–1.02)	0.81* (0.78–0.84)	1.06* (1.02–1.10)	2.53* (2.36–2.71)	1.27 (0.79–2.04)
⩾60	1.12 (0.94–1.33)	0.95* (0.92–0.97)	1.29* (1.21–1.37)	1.83* (1.68–2.00)	2.18* (1.53–3.12)

^*P < 0.01.