Table 6.
Minimum Annual Incidence of Suspected Meningitis, Septicemia, and Pneumonia, Associated 4-Month Mortality, and Invasive Bacterial Disease in the Basse Health and Demographic Surveillance Systema,b
| Age Group | No. of Cases | Incidence per 100 000 PY (95% CI) | No. of Deaths | Incidence per 100 000 PY (95% CI) |
|---|---|---|---|---|
| All ages | ||||
| ȃSuspected pneumonia | 1392 | 133 (126–140) | 45 | 4 (3–6) |
| ȃSuspected meningitis | 135 | 13 (11–15) | 22 | 2 (1–3) |
| ȃSuspected septicemia | 111 | 11 (9–13) | 1 | <1 (<1–1) |
| ȃRadiological pneumonia with consolidation | 482 | 46 (42–50) | 27 | 3 (2–4) |
| Age 5–9 y | ||||
| ȃSuspected pneumonia | 617 | 310 (286–336) | 3 | 1 (<1–4) |
| ȃSuspected meningitis | 97 | 49 (40–60) | 18 | 9 (5–14) |
| ȃSuspected septicemia | 48 | 24 (18–32) | 1 | 1 (<1–2) |
| ȃRadiological pneumonia with consolidation | 200 | 90 (78–104) | 3 | 1 (<1–4) |
| Age 10–14 y | ||||
| ȃSuspected pneumonia | 170 | 102 (87–119) | 5 | 3 (1–7) |
| ȃSuspected meningitis | 17 | 10 (6–16) | 1 | 1 (<1–3) |
| ȃSuspected septicemia | 17 | 10 (6–16) | 0 | ND |
| ȃRadiological pneumonia with consolidation | 63 | 37 (28–47) | 1 | 1 (<1–3) |
| Age 15–54 y | ||||
| ȃSuspected pneumonia | 500 | 84 (77–91) | 21 | 4 (2–5) |
| ȃSuspected meningitis | 18 | 3 (2–5) | 2 | <1 (<1–1) |
| ȃSuspected septicemia | 44 | 7 (5–10) | 0 | ND |
| ȃRadiological pneumonia with consolidation | 164 | 26 (22–30) | 13 | 2 (1–4) |
| Age ≥55 y | ||||
| ȃSuspected pneumonia | 105 | 123 (100–149) | 16 | 19 (10–31) |
| ȃSuspected meningitis | 3 | 4 (1–10) | 1 | 1 (<1–7) |
| ȃSuspected septicemia | 2 | 2 (0–9) | 0 | ND |
| ȃRadiological pneumonia with consolidation | 55 | 61 (46–80) | 10 | 11 (5–20) |
| Culture positive | 144 | 13 (11–15) | 14 | 1 (<1–2) |
| ȃStreptococcus pneumoniae | 84 | 8 (6–10) | 6 | 1 (<1–1) |
| ȃNeisseria meningitidis | 16 | 2 (1–2) | 3 | <1 (<1–1) |
| ȃStaphylococcus aureus | 15 | 1 (1–2) | 2 | <1 (<1–1) |
| ȃSalmonella spp | 7 | 1 (<1–1) | 0 | ND |
| ȃOther gram negatives | 22 | 2 (1–3) | 3 | <1 (<1–1) |
Abbreviations: CI, confidence interval; ND, not determined (no reported deaths in the study therefore incidence cannot be determined); PY, person-years.
Cases of suspected pneumonia, meningitis, or septicemia are counted separately while radiological pneumonia is a subset of suspected pneumonia.
All results in the table have been rounded to the nearest whole number except where the nearest whole number is zero, in which case <1 has been used.