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. Author manuscript; available in PMC: 2024 Dec 1.
Published in final edited form as: Transfus Med. 2023 Oct 12;33(6):483–496. doi: 10.1111/tme.13006

TABLE 3.

Sample proportions of donors testing positive for HIV, syphilis, hep B and hep C along with model-based spatially-smoothed estimates and their corresponding 95% confidence intervals.

HIV
Syphilis
Hep B
Hep C
Any TTI
District Sample proportion Estimated prevalence 95% CI Sample proportion Estimated Prevalence 95% CI Sample proportion Estimated prevalence 95% CI Sample proportion Estimated prevalence 95% CI Sample proportion Estimated prevalence 95% CI
Balaka 0.024 0.024 (0.021, 0.027) 0.035 0.034 (0.025, 0.043) 0.037 0.034 (0.029, 0.04) 0.027 0.027 (0.018, 0.035) 0.114 0.112 (0.091, 0.133)
Blantyre 0.029 0.029 (0.027, 0.03) 0.04 0.038 (0.028, 0.047) 0.035 0.033 (0.028, 0.037) 0.018 0.021 (0.015, 0.027) 0.113 0.111 (0.091, 0.131)
Chikwawa 0.021 0.021 (0.017, 0.025) 0.049 0.044 (0.032, 0.056) 0.04 0.032 (0.027, 0.038) 0.026 0.021 (0.014, 0.029) 0.126 0.121 (0.098, 0.145)
Chiradzulu 0.022 0.023 (0.02, 0.027) 0.025 0.026 (0.018, 0.034) 0.034 0.033 (0.028, 0.038) 0.016 0.02 (0.014, 0.025) 0.094 0.095 (0.076, 0.114)
Chitipa 0.01 0.011 (0.008, 0.014) 0.009 0.013 (0.009, 0.018) 0.015 0.026 (0.02, 0.031) 0.007 0.013 (0.007, 0.018) 0.038 0.048 (0.037, 0.06)
Dedza 0.016 0.019 (0.015, 0.023) 0.022 0.023 (0.016, 0.031) 0.027 0.033 (0.028, 0.039) 0.024 0.028 (0.018, 0.038) 0.085 0.088 (0.07, 0.106)
Dowa 0.027 0.026 (0.022, 0.03) 0.035 0.034 (0.025, 0.043) 0.029 0.033 (0.028, 0.039) 0.032 0.032 (0.022, 0.043) 0.115 0.112 (0.091, 0.134)
Karonga 0.011 0.011 (0.009, 0.014) 0.02 0.022 (0.016, 0.029) 0.029 0.027 (0.022, 0.032) 0.017 0.015 (0.009, 0.021) 0.073 0.078 (0.062, 0.094)
Kasungu 0.027 0.026 (0.023, 0.03) 0.031 0.031 (0.022, 0.039) 0.038 0.033 (0.027, 0.039) 0.05 0.037 (0.024, 0.049) 0.137 0.13 (0.107, 0.154)
Lilongwe 0.027 0.027 (0.026, 0.029) 0.035 0.034 (0.025, 0.042) 0.037 0.034 (0.028, 0.04) 0.024 0.028 (0.019, 0.038) 0.115 0.113 (0.092, 0.133)
Machinga 0.024 0.024 (0.019, 0.028) 0.034 0.033 (0.023, 0.042) 0.044 0.036 (0.029, 0.042) 0.029 0.026 (0.017, 0.036) 0.123 0.119 (0.096, 0.142)
Mangochi 0.018 0.019 (0.016, 0.023) 0.027 0.028 (0.02, 0.036) 0.036 0.035 (0.029, 0.041) 0.027 0.028 (0.018, 0.038) 0.103 0.102 (0.083, 0.122)
Mchinji 0.029 0.029 (0.024, 0.033) 0.03 0.03 (0.021, 0.039) 0.04 0.034 (0.028, 0.04) 0.033 0.031 (0.02, 0.043) 0.125 0.121 (0.098, 0.144)
Mulanje 0.022 0.021 (0.018, 0.025) 0.039 0.037 (0.026, 0.047) 0.029 0.032 (0.027, 0.037) 0.021 0.019 (0.013, 0.025) 0.106 0.105 (0.084, 0.125)
Mwanza 0.025 0.025 (0.019, 0.03) 0.029 0.029 (0.02, 0.039) 0.024 0.031 (0.026, 0.037) 0.028 0.025 (0.016, 0.033) 0.1 0.1 (0.079, 0.122)
Mzimba 0.016 0.016 (0.014, 0.019) 0.018 0.02 (0.014, 0.025) 0.026 0.029 (0.024, 0.035) 0.019 0.024 (0.015, 0.032) 0.076 0.08 (0.064, 0.095)
Mzuzu 0.016 0.017 (0.014, 0.019) 0.02 0.022 (0.016, 0.028) 0.025 0.029 (0.024, 0.034) 0.014 0.021 (0.014, 0.028) 0.073 0.077 (0.062, 0.092)
Neno 0.02 0.024 (0.019, 0.029) 0.025 0.026 (0.017, 0.036) 0.027 0.032 (0.027, 0.037) 0.031 0.026 (0.017, 0.034) 0.097 0.098 (0.076, 0.121)
Nkhata-Bay 0.02 0.018 (0.014, 0.022) 0.025 0.026 (0.018, 0.035) 0.035 0.03 (0.024, 0.035) 0.051 0.027 (0.018, 0.036) 0.118 0.114 (0.091, 0.138)
Nkhota-Kota 0.015 0.017 (0.013, 0.021) 0.027 0.027 (0.019, 0.035) 0.037 0.033 (0.027, 0.039) 0.037 0.034 (0.022, 0.046) 0.11 0.108 (0.087, 0.129)
Nsanje 0.012 0.014 (0.011, 0.017) 0.024 0.026 (0.018, 0.033) 0.027 0.031 (0.025, 0.037) 0.014 0.017 (0.01, 0.024) 0.075 0.08 (0.063, 0.097)
Ntcheu 0.023 0.023 (0.02, 0.027) 0.033 0.032 (0.023, 0.041) 0.031 0.033 (0.028, 0.039) 0.031 0.028 (0.019, 0.038) 0.112 0.11 (0.089, 0.131)
Ntchisi 0.022 0.023 (0.017, 0.028) 0.021 0.024 (0.015, 0.032) 0.023 0.033 (0.027, 0.038) 0.032 0.034 (0.023, 0.045) 0.089 0.092 (0.07, 0.113)
Phalombe 0.018 0.021 (0.016, 0.025) 0.022 0.024 (0.016, 0.032) 0.037 0.034 (0.028, 0.039) 0.015 0.02 (0.013, 0.027) 0.087 0.09 (0.071, 0.11)
Rumphi 0.017 0.016 (0.013, 0.019) 0.018 0.021 (0.014, 0.027) 0.026 0.027 (0.022, 0.033) 0.016 0.017 (0.011, 0.024) 0.074 0.078 (0.062, 0.095)
Salima 0.026 0.025 (0.021, 0.029) 0.04 0.037 (0.027, 0.047) 0.052 0.036 (0.029, 0.042) 0.04 0.033 (0.022, 0.045) 0.144 0.136 (0.111, 0.162)
Thyolo 0.019 0.019 (0.017, 0.022) 0.046 0.042 (0.031, 0.053) 0.028 0.032 (0.027, 0.037) 0.013 0.018 (0.012, 0.023) 0.101 0.101 (0.082, 0.12)
Zomba 0.029 0.028 (0.024, 0.031) 0.047 0.043 (0.032, 0.054) 0.039 0.034 (0.029, 0.04) 0.03 0.024 (0.017, 0.031) 0.136 0.129 (0.106, 0.152)