pct_open_time: wild-type 20.1, knockout 17.0, Welch p = 0.54
pct_open_entries: wild-type 31.0, knockout 26.2, Welch p = 0.56
open_entries: wild-type 5.8, knockout 5.9, Welch p = 0.95
pct_centre_time: wild-type 7.9, knockout 8.6, Welch p = 0.72
centre_entries: wild-type 7.1, knockout 7.3, Welch p = 0.94
closed_entries: wild-type 12.3, knockout 18.3, Welch p = 0.06
distance_m: wild-type 30.7, knockout 29.6, Welch p = 0.7
rearing: wild-type 40.1, knockout 42.1, Welch p = 0.61
A. Any of the 5 anxiety measures with p < 0.05: no (0 of 5)
B. Holm-adjusted over the 5 anxiety measures: smallest adjusted p = 1
C. Primary outcome chosen in advance, % time in open arms: difference -3.1 points (95% CI -13.7 to 7.5), p = 0.54
D. Composite anxiety score (mean z of pct_open_time, pct_open_entries, pct_centre_time): difference -0.16 SD (95% CI -0.90 to 0.59), p = 0.67