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. 2019 Apr 23;15(10):2386–2398. doi: 10.1080/21645515.2019.1586040

Table 2.

Febrile convulsions incidence and self-controlled case-series analysis.

Incidence per 1,000 vaccine doses of febrile convulsions with diagnostic certainty level 1–3 (Brighton collaboration), within 7 days after each dose
  5–17months age category (children)
6–12 weeks age category (infants)
  N n Incidence (95% CI) N n Incidence (95% CI)
First 3 doses
RTS,S/AS01 17,306 18 1.0 (0.6–1.6) 12,739 2 0.2 (0.0–0.6)
Control 8728 5 0.6 (0.2–1.3) 6403 3 0.5 (0.1–1.4)
Dose 4
R3R 2447 6 2.5 (0.9–5.3) 1825 4 2.2 (0.6–5.6)
R3C 2472 3 1.2 (0.3–3.5) 1837 0 0.0 (0.0–2.0)
C3C 2473 1 0.4 (0.0–2.3) 1827 1 0.5 (0.0–3.0)
SCCS Risk Ratio (95% CI) of febrile convulsions after each of the first 3 doses (5–17 months age category)
Risk period R3R R3C R3R+R3C C3C
3 days (days 0–2) 3.8 (1.7–8.7) 2.3 (0.8–6.0) 3.0 (1.6–5.6) 0.8 (0.2–3.5)
7 days (days 0–6) 1.9 (0.9–4.2) 2.2 (1.0–4.9) 2.1 (1.2–3.6) 1.1 (0.4–2.8)
SCCS Risk Ratio (95% CI) of febrile convulsions post-dose 4 (5–17 months age category)
Risk period R3R R3C   C3C
3 days (days 0–2) 6.0 (2.1–16.9) 4.5 (0.4–49.6)   0.0
7 days (days 0–6) 2.9 (1.0–7.9) 6.6 (0.6–72.5)   0.4 (0.1–2.9)

R3R, group receiving 4 doses of RTS,S/AS01; R3C, group receiving 3 doses of RTS,S/AS01 plus 1 dose of control vaccine; C3C, group receiving 4 doses of control vaccine; N, total number of vaccine doses administered in the group; n, number of vaccine doses followed by febrile convulsions; CI, confidence interval. Risk ratio is the risk ratio of the self-controlled case-series (SCCS) analysis, comparing the incidence in a given risk period (3 and 7 days post-vaccination) to the incidence in the corresponding control period (day 4–30 and day 8–30 post-vaccination, respectively).