Table 7  Correlation matrix of frequency of antibody test completion, mental health, and programme satisfaction (n = 93).
1  2  3  4  5  6  7  8
1. Frequency of antibody tests completed  1  −0.071  −0.220 *  −0.226 *  −0.318 **  −0.169   −0.137  −0.533 **
2. Worry about getting COVID-19   1  0.533 **  −0.014  0.148  −0.065   −0.042   0.152
3. Worry about friends and family getting COVID-19    1  0.023  0.139  0.159   −0.131  0.216 *
4. Satisfaction with overall P-ATS information received     1  0.608 **  0.07  0.317 **  0.259 *
5. Satisfaction with how overall P-ATS information was communicated      1  0.015  0.272 **  0.403 ***
6. Gained new knowledge through P-ATS       1   −0.01   0.194
7. Confidence in test outcomes +        1  0.013
8. Satisfaction with drop-off location +         1
*** p < 0.001, ** p < 0.01, * p < 0.05; n = 91; italic correlation coefficients indicated nonparametric correlations. + Binary variables, yes coded “0” and no “1”.