Table 4 Knowledge score in subgroups of the two surveys
CAA | IPSOS | IPSOS v CAA | ||||||
|---|---|---|---|---|---|---|---|---|
Variable | Mean know-ledge score | Difference in means, or regression coefficient | 95% CI within variable | Weighted mean knowledge score | Difference in means, or regression coefficient | 95% CI within variable | Overall estimate & CIa | |
Prophylaxis | No | 71.7 | 62.5 | |||||
Yes | 70.0 | -1.7 | (-4.30, 0.98) | 64.7 | 2.3 | (0.22, 4.35) | 0.79 (-0.83, 2.41) | |
Advice score | None | 72.8 | 61.9 | |||||
Non-professional | 70.5 | 62.8 | ||||||
Professional | 70.0 | -2.7 | (-5.61, 0.26) | 64.3 | 2.4 | (-0.13, 4.97) | 0.23 (-1.69, 2.15) | |
Ethnicity | White | 70.2 | 64.2 | |||||
Black | 73.4 | 3.1 | (-1.13, 7.42) | 66.1 | 2.5 | (-2.87, 7.76) | 2.87 (-0.44, 6.18) | |
Asian | 80.8 | 10.6 | (3.04, 18.20) | 61.1 | -2.6 | (-5.57, 0.41) | (-) | |
Mixed & other | 76.7 | 6.4 | (-7.89, 20.80) | 56.6 | -7.6 | (-15.1, -0.05) | -4.51 (-11.2, 2.13) | |
Region to which travelledb | ||||||||
West Africa | 72.3 | 68.1 | ||||||
South and East Africa | 70.1 | -2.3 | (-5.03, 0.52) | 62.6 | -5.5 | (-10.4, -0.56) | -3.04 (-5.45, -0.62) | |
Asia and other | 68.5 | -3.8 | (-7.37, -0.34) | 63.3 | -4.8 | (-9.34, -0.27) | -4.21 (-6.97, -1.44) | |
Reason for Travel | Business | 72.5 | 63.5 | |||||
Leisure | 70.1 | -2.4 | (-5.60, 0.73) | 63.8 | 0.3 | (-2.77, 2.24) | -0.77 (-2.72, 1.18) | |
Income (per doubling) | 0.34 | (-0.41, 1.10) | 0.02 | (-0.78, 0.81) | 0.19 (-0.36, 0.73) | |||