Table 4.

Crude and adjusted odds ratios (OR; aOR) of risk factors among returning PSU UP student cohort.

Dependent: assay	Negative	Positive	OR (univariable)	aOR (multiple imputation)
Close proximity to known COVID-19 positive individual
No	277 (58.3%)	61 (29.5%)
Yes	198 (41.7%)	146 (70.5%)	3.35 (2.37–4.78, p < 0.001)	3.10 (2.07–4.64, p < 0.001)
Close proximity to individual showing COVID-19 symptoms
No	346 (73.0%)	128 (61.8%)
Yes	128 (27.0%)	79 (38.2%)	1.67 (1.18–2.36, p = 0.004)	0.87 (0.58–1.30, p = 0.494)
Travelled in the 3 months prior to campus arrival
No	209 (45.4%)	82 (40.8%)
Yes	251 (54.6%)	119 (59.2%)	1.21 (0.86–1.69, p = 0.269)	1.05 (0.73–1.53, p = 0.785)
Travelled since campus arrival
No	183 (38.5%)	82 (39.6%)
Yes	292 (61.5%)	125 (60.4%)	0.96 (0.68–1.34, p = 0.789)	0.85 (0.59–1.23, p = 0.394)
Attended a gathering of 20–50 people since arrival for the Fall Semester
No	280 (59.1%)	82 (39.6%)
Yes	194 (40.9%)	125 (60.4%)	2.20 (1.58–3.08, p < 0.001)	1.52 (1.03–2.24, p = 0.034)
Attended a gathering of 51–1000 people since arrival for the fall semester
No	396 (85.3%)	154 (76.6%)
Yes	68 (14.7%)	47 (23.4%)	1.78 (1.17–2.69, p = 0.007)	1.32 (0.83–2.10, p = 0.238)
Ate in a dining hall in the past 7 days
No	394 (83.1%)	163 (79.1%)
Yes	80 (16.9%)	43 (20.9%)	1.30 (0.85–1.96, p = 0.214)	1.30 (0.74–2.28, p = 0.356)
Ate in a restaurant in the past 7 days
No	250 (52.5%)	96 (46.8%)
Yes	226 (47.5%)	109 (53.2%)	1.26 (0.91–1.75, p = 0.173)	1.12 (0.78–1.61, p = 0.539)
Only ate in their room in the past 7 days
No	158 (33.2%)	76 (36.9%)
Yes	318 (66.8%)	130 (63.1%)	0.85 (0.61–1.20, p = 0.350)	0.91 (0.61–1.34, p = 0.625)
Lives in university housing
No	349 (73.5%)	152 (73.4%)
Yes	126 (26.5%)	55 (26.6%)	1.00 (0.69–1.45, p = 0.991)	0.89 (0.54–1.45, p = 0.630)