Table 3 Age group- and risk group-specific ratios of case ratios (termed adjusted case ratios) for pneumococcal pneumonia and pneumonia of unspecified causative organism against the control conditions

<2 years

0.18 (0.14–0.25)

0.19 (0.15–0.25)

0.67 (0.50–0.92)

0.67 (0.51–0.87)

2–4

0.73 (0.58–0.97)

0.40 (0.32–0.59)

0.80 (0.64–1.06)

0.82 (0.67–1.22)

5–14

0.35 (0.25–0.46)

0.31 (0.28–0.39)

0.73 (0.53–0.96)

0.67 (0.60–0.84)

15–24

0.35 (0.27–0.50)

0.51 (0.38–0.72)

1.52 (1.20–2.19)

0.93 (0.69–1.30)

25–44

0.70 (0.59–0.79)

0.62 (0.45–0.74)

1.35 (1.15–1.53)

0.99 (0.72–1.18)

45–64

0.83 (0.66–0.96)

0.77 (0.56–0.85)

1.34 (1.07–1.56)

1.15 (0.83–1.27)

65+

0.77 (0.55–0.99)

0.61 (0.54–0.71)

1.41 (1.00–1.82)

1.13 (0.99–1.31)