Table 2.

Summary statistics and balance checks

Summary statistics and balance check: all samples
Variable	N	Overall, $N={1581}^{\mathrm{a}}$	Ambiguity 1, $N={531}^{\mathrm{a}}$	Ambiguity 2, $N={527}^{\mathrm{a}}$	Control, $N={523}^{\mathrm{a}}$	p value${}^{\mathrm{b}}$
Female	1581	790 (50%)	266 (50%)	259 (49%)	265 (51%)	0.88
Age	1581	52 (40,69)	51 (39, 68)	52 (41, 66)	54 (40,70)	0.44
College	1581	368 (23%)	121 (23%)	133 (25%)	114 (22%)	0.40
Highschool	1581	633 (40%)	216 (41%)	201 (38%)	216 (41%)	0.54
Junior college	1581	180 (11%)	49 (9.2%)	62 (12%)	69 (13%)	0.12
Vocational school	1581	103 (6.5%)	39 (7.3%)	33 (6.3%)	31 (5.9%)	0.62
Income	1359					0.54
99.5		174 (13%)	67 (15%)	50 (11%)	57 (13%)
299.5		387 (28%)	117 (25%)	130 (29%)	140 (31%)
499.5		318 (23%)	122 (27%)	100 (22%)	96 (21%)
699.5		202 (15%)	67 (15%)	74 (17%)	61 (13%)
899.5		132 (9.7%)	39 (8.5%)	47 (11%)	46 (10%)
1099.5		51 (3.8%)	15 (3.3%)	16 (3.6%)	20 (4.4%)
1299.5		43 (3.2 %)	17 (3.7%)	11 (2.5%)	15 (3.3%)
1400		52 (3.8%)	15 (3.3%)	18 (4.0%)	19 (4.2%)
Unknown		222	72	81	69
Ambiguity averse	1581	837 (53%)	282 (53%)	291 (55%)	264 (50%)	0.30
Ambiguity neutral	1581	356 (23%)	117 (22%)	106 (20%)	133 (25%)	0.11
Ambiguity loving	1581	388 (25%)	132 (25%)	130 (25%)	126 (24%)	0.96

${}^{\mathrm{a}}$n (%); median (IQR)

${}^{\mathrm{b}}$Pearson’s Chi-squared test; Kruskal-Wallis rank sum test