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Table 2 Seroprevalence to four malarial antigens by age group

From: Using serological measures to monitor changes in malaria transmission in Vanuatu

Location Age group (years) N Pf MSP Pf MSP +ve % Pf MSP +ve N Pf AMA Pf AMA +ve % Pf AMA +ve N Pf SE Pf SE +ve % PfSE +ve N Pv MSP Pv MSP +ve % Pv MSP +ve N Pv AMA Pv AMA +ve % Pv AMA+ve
  0-5 64 4 6.3 (1.6-12.3) 65 7 10.8 (3.0-18.5) 66 5 7.6 (1.0-14.1) 66 13 19.7 (9.8-29.5) 65 8 12.3 (4.1-20.5)
Northern Tanna 5-20 176 15 8.5 (4.4-12.7) 174 29 16.7 (11.1-22.3) 176 25 14.2 (9.0-19.4) 172 27 15.7 (10.2-21.2) 175 20 11.4 (6.7-16.2)
  20-80 121 44 36.4 (27.7-45.1) 119 43 36.1 (27.4-45.0) 120 68 56.7 (47.7-65.7) 119 37 31.1 (22.7-39.5) 121 41 33.9 (25.3-42.4)
  Total 361 63 17.5 (13.5-21.4) 358 79 22.1 (17.8-26.4) 362 98 27.1 (22.5-31.7) 357 77 21.6 (17.3-25.9) 361 69 19.1 (15.0-23.2)
  0-5 115 3 2.6 (0-5.6) 119 5 4.2 (0.5-7.9) 119 1 0.8 (0.0-2.5) 117 6 5.1 (1.1-9.2) 119 4 3.4 (0.1-6.6)
Northern Tanna Highlands 5-20 216 13 6.0 (2.8-9.2) 218 14 6.4 (3.1-9.7) 221 12 5.4 (2.4-8.4) 216 14 6.5 (3.2-9.8) 220 15 6.8 (3.5-10.2)
  20-80 173 21 11.6 (7.2-17.1) 174 35 20.1 (14.1-26.1) 176 66 37.9 (30.6-45.2) 174 12 6.9 (3.1-10.7) 173 22 12.7 (7.7-17.7)
  Total 504 37 7.3 (5.1-9.6) 511 54 10.6 (7.9-13.2) 514 79 15.4 (12.2-18.5) 507 32 6.3 (4.2-8.4) 512 41 8.0 (5.6-10.4)
  0-5 52 1 1.9 (0-5.8) 52 2 3.8 (0-9.3) 51 0 0.0 51 5 9.8 (1.4-18.3) 52 8 15.4 (5.2-25.5)
Southern Tanna 5-20 195 3 1.5 (0-3.3) 188 7 3.6 (1.0-6.2) 192 3 1.6 (0.0-3.3) 195 22 11.3 (6.8-15.8) 194 31 16.0 (10.8-21.2)
  20-80 123 12 9.8 (4.4-15.1) 122 11 9.0 (3.9-14.2) 121 26 21.5 (14.1-28.9) 123 19 15.5 (9.0-21.9) 122 37 30.3 (22.1-38.6)
  Total 370 16 4.3 (2.2-6.4) 349 20 5.4 (3.1-7.7) 364 29 8.0 (5.2-10.8) 369 46 12.5 (9.1-15.9) 368 76 20.7 (16.5-24.8)
  0-5 90 1 1.1 (0-3.3) 90 4 4.4 (0.1-8.8) 90 4 4.4 (0.1-8.7) 90 3 3.3 (0-7.1) 88 3 3.4 (0-7.3)
Aneityum 5-20 218 9 4.1 (1.5-6.8) 218 10 4.6 (1.8-7.4) 219 5 2.3 (0.3-4.3) 219 9 4.1 (1.5-6.8) 210 12 5.7 (2.6-8.9)
  20-80 208 24 11.5 (7.2-15.9) 208 16 7.7 (4.0-11.1) 208 52 25 (19.1-30.9) 208 20 9.6 (5.6-13.7) 207 36 17.4 (12.2-22.6)
  Total 516 34 6.6 (4.4-8.7) 516 30 5.8 (3.8-7.8) 517 61 11.8 (9.0-14.6) 517 32 6.2 (4.1-8.3) 505 51 10.1 (7.5-12.7)
  1. Number of positive individuals and seroprevalence (95% CIs) to PfMSP-119, PfAMA, PfSE, PvMSP-119 and PvAMA for three age groups in three settlements on Tanna and two settlements combined on Aneityum