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Table 2 Description of study population according to randomization groups

From: Rationale and methods of a randomized controlled trial of immunogenicity, safety and impact on carriage of pneumococcal conjugate and polysaccharide vaccines in infants in Papua New Guinea

  10vPCV 13vPCV
Number enrolled 131 131
Male, number (%) at enrolment 66 (50%) 72 (55%)
Age (days) at study visits
Visit 1 m/PCV1, mean ± sd 30.9 ± 2.5 (n = 131) 31.0 ± 2.2 (n = 131)
 (Min-Max) (25–39) (27–40)
Visit 2 m/PCV2, mean ± sd 61.6 ± 3.4 (n = 122) 61.9 ± 4.0 (n = 121)
 (Min-Max) (55–77) (56–84)
Visit 3 m/PCV3, mean ± sd 94.0 ± 7.8 (n = 119) 92.5 ± 4.4 (n = 109)
 (Min-Max) (84–134) (84–112)
Weight (kg)
Birth weight, mean ± sd 3.4 ± (n = 97) 3.3 ± (n = 105)
 (Min-Max) (2.2–4.5) (2.3–4.5)
Visit 1 m, mean ± sd 4.4 ± 0.7 (n = 127) 4.3 ± 0.5 (n = 126)
 (Min-Max) (2.5–6.1) (2.7–5.7)
Visit 2 m, mean ± sd 5.3 ± 0.7 (n = 122) 5.3 ± 0.7 (n = 120)
 (Min-Max) (3.4–6.8) (2.9–7.2)
Visit 3 m, mean ± sd 6.1 ± 0.9 (n = 114) 6.0 ± 0.8 (n = 108)
 (Min-Max) (4.0–8.5) (4.1–8.1)
  10vPCV 13vPCV
No PPV PPV No PPV PPV
Number followed-up at 9 months 57 51 48 52
Male, number (%) at 9 months 29 (51%) 24 (43%) 26 (54%) 29 (54%)
Age (months)
Visit 9 m, mean ± sd 9.2 ± 0.7 (n = 57) 9.5 ± 1.2 (n = 51) 9.06 ± 0.2 (n = 48) 9.2 ± 0.5 (n = 52)
 (Min-Max) (8.2–13.1) (8.9–14.4) (8.6–9.9) (8.9–11.9)
Visit 23 m, mean ± sd 23.4 ± 0.8 (n = 47) 23.3 ± 0.6 (n = 46) 23.3 ± 0.8 (n = 40) 23.3 ± 0.7 (n = 46)
 (Min-Max) (22.1–27.1) (22.9–26.3) (22.9–26.5) (22.6–26.0)
Visit 24 m, mean ± sd 24.5 ± 1.0 (n = 47) 24.6 ± 0.9 (n = 44) 24.4 ± 0.8 (n = 40) 24.5 ± 1.1 (n = 45)
 (Min-Max) (23.2–28.1) (23.9–27.9) (23.9–30.1) (23.7–30.1)
Weight (kg)
Visit 9 m, mean ± sd 8.4 ± 1.1 (n = 53) 8.1 ± 1.3 (n = 51) 8.1 ± 0.8 (n = 45) 8.0 ± 0.9 (n = 52)
 (Min-Max) (6.5–11.2) (6.3–14.0) (6.5–10.4) (6.6–10.5)
Visit 23 m, mean ± sd 11.3 ± 1.2 (n = 44) 10.7 ± 1.4 (n = 42) 10.9 ± 1.3 (n = 38) 11.0 ± 1.5 (n = 37)
 (Min-Max) (9.7–14.0) (7.7–14.0) (8.8–14.0) (8.9–15.0)
Visit 24 m, mean ± sd 11.7 ± 1.5 (n = 44) 11.3 ± 1.4 (n = 40) 11.3 ± 1.2 (n = 35) 11.17 ± 1.4 (n = 42)
 (Min-Max) (8.9–15.0) (8.1–14.0) (9.0–14.0) (9.0–15.0)