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Table 3 Exact sample sizes and corresponding ranges for absolute SCR, EIR and SP by controlling the relative length of 95% confidence interval for SCR under the assumption of SRR = 0.017

From: Sample size determination for estimating antibody seroconversion rate under stable malaria transmission intensity

Population Relative length SCR Sample size SCR EIR SP
Africa 1.00 0.0036 315 0.0019-0.0054 0.00-0.03 0.030-0.085
   0.0108 128 0.0058-0.0166 0.03-0.26 0.090-0.223
   0.0324 73 0.0189-0.0513 0.34-2.75 0.248-0.483
   0.0969 79 0.0627-0.1594 4.18-29.17 0.536-0.759
   0.2900 151 0.1994-0.4885 46.5-300.58 0.801-0.919
  0.75 0.0036 549 0.0023-0.0050 0.00-0.02 0.037-0.078
   0.0108 220 0.0070-0.0151 0.04-0.21 0.106-0.207
   0.0324 123 0.0218-0.0461 0.46-2.20 0.276-0.455
   0.0969 127 0.0689-0.1415 5.08-22.76 0.560-0.735
   0.2900 233 0.2137-0.4307 53.7-231.22 0.813-0.907
  0.50 0.0036 1163 0.0027-0.0045 0.01-0.02 0.044-0.071
   0.0108 479 0.0082-0.0136 0.06-0.17 0.123-0.190
   0.0324 264 0.0250-0.0412 0.61-1.74 0.305-0.425
   0.0969 262 0.0765-0.1249 6.31-17.54 0.588-0.707
   0.2900 461 0.2326-0.3776 64.05-175.78 0.827-0.893
  0.25 0.0036 4,968 0.0032-0.0041 0.01-0.01 0.051-0.064
   0.0108 1,878 0.0095-0.0122 0.08-0.14 0.140-0.173
   0.0324 1,009 0.0285-0.0366 0.81-1.36 0.335-0.396
   0.0969 976 0.0858-0.1100 8.02-13.46 0.617-0.678
   0.2900 1,670 0.2576-0.3301 79.28-132.89 0.843-0.877
Elsewhere 1.00 0.0036 248 0.0019-0.0055 0.00-0.03 0.039-0.107
   0.0108 105 0.0059-0.0166 0.03-0.26 0.115-0.276
   0.0324 67 0.0195-0.0516 0.37-2.79 0.311-0.563
   0.0969 90 0.0645-0.1612 4.43-29.85 0.622-0.819
   0.2900 209 0.2019-0.4915 47.71-304.46 0.853-0.940
  0.75 0.0036 439 0.0023-0.0050 0.00-0.02 0.047-0.098
   0.0108 179 0.0070-0.0151 0.04-0.21 0.134-0.256
   0.0324 111 0.0221-0.0463 0.48-2.22 0.340-0.534
   0.0969 142 0.0700-0.1426 5.26-23.12 0.643-0.798
   0.2900 320 0.2154-0.4325 54.58-233.33 0.861-0.931
  0.50 0.0036 953 0.0027-0.0045 0.01-0.02 0.056-0.090
   0.0108 388 0.0082-0.0136 0.06-0.17 0.154-0.236
   0.0324 234 0.0251-0.0413 0.62-1.75 0.371-0.503
   0.0969 288 0.0771-0.1254 6.41-17.7 0.667-0.774
   0.2900 629 0.2335-0.3784 64.59-176.58 0.872-0.921
  0.25 0.0036 3,558 0.0031-0.0040 0.01-0.01 0.064-0.082
   0.0108 1,507 0.0095-0.0122 0.08-0.14 0.175-0.216
   0.0324 890 0.0286-0.0367 0.81-1.36 0.404-0.470
   0.0969 1,059 0.0859-0.1101 8.04-13.49 0.693-0.748
   0.2900 2,263 0.2579-0.3304 79.44-133.1 0.884-0.909