As would be expected, due to a longer period in the P-ATS, first-year students completed significantly more PCR tests than final-year students during the pilot: Xfirst year = 10.13, SD = 2.82, n= 65; Xfinal year= 2.68, SD = 1.12, n = 28; t (91) = 12.51, p < 0.001. Figure 4 stratifies these reported frequencies across year groups. Across the whole sample (n = 93), reported adherence to PCR testing was significantly higher in those who had been required to self-isolate at any point during the P-ATS (Xself-isolate= 9.03, SD= 2.98, n = 34; Xno self-isolate= 7.15, SD = 4.82, n = 59; t (91) = 2.19, p = 0.031, Xdifference: 1.99), and those with lower levels of anxiety (Xlow anxiety = 8.70, SD = 4.24, n = 64; Xhigh anxiety = 6.07, SD = 3.99, n = 29; t (91) = −2.83, p = 0.006). Adherence to PCR testing was also higher in those students who lived on campus (n = 63) compared with those who lived elsewhere (X = 10.15on campus, SD = 2.67, n = 61; Xoff campus = 3.56, SD = 2.99, n = 32; t(91) = −10.14, p < 0.001), although this is not unexpected, given that almost all of the on-campus students were in their first year (n = 62) and were offered the full 12 weeks of P-ATS. Among the first-year students specifically (n = 65), adherence to PCR testing was significantly higher in those with lower levels of anxiety (Xlow anxiety = 10.71, SD = 2.47, n = 48; Xhigh anxiety = 8.47, SD = 3.14, n = 17; t (63) = −2.98, p = 0.004).