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Table 2 Overall, sex and house specific attack rates for influenza A (H1N1) pdm09 in a SHS, Accra, Ghana, 2018

From: Influenza A (H1N1)pdm09 outbreak of unknown source in a Ghanaian senior high school

Variable Attack Rate (%) Attack Rate Ratio
(95% Confidence Interval)
p-value
Sex
 Males 74/1331 (5.6) 3.4 (2.23–5.15) < 0.001
 Females 30/1829 (1.6) Reference  
House
 House A 7/218 (3.2) 0.4 (0.16–0.96) 0.034
 House B 2/145 (1.4) 0.2 (0.04–0.73) 0.006
 House C 5/185 (2.7) 0.3 (0.12–0.91) 0.023
 House D 2/145 (1.4) 0.2 (0.04–0.73) 0.006
 House E 3/136 (2.2) 0.3 (0.08–0.93) 0.024
 House F 1/143 (0.7) 0.1 (0.01–0.65) 0.002
 House G 13/159 (8.2) Reference  
 House H 10/154 (6.5) 0.8 (0.36–1.76) 0.568
 House I 5/152 (3.3) 0.4 (0.15–1.10) 0.065
 House J 2/168 (1.2) 0.1 (0.03–0.64) 0.003
 House K 7/149 (4.7) 0.6 (0.23–1.40) 0.216
 House L 1/158 (0.7) 0.1 (0.01–0.58) 0.001
 House M 3/153 (2.0) 0.2 (0.07 0.83) 0.013
 House N 9/180 (5.0) 0.6 (0.27–1.39) 0.236
 House O 7/211 (3.4) 0.4 (0.17–0.99) 0.041
 House P 0/201 (0.0) * *
 House Q 2/159 (1.3) 0.2 (0.04–0.67) 0.004
  1. *Attack rate is 0