Table 2.

Symptoms

Symptom	Overall		Female patients		Male patients		P
	n	%	n	%	n	%
Lightheadedness	7382	98.7	6934	99.0	448	95.3	< 0.001
Headache	7050	94.4	6638	94.9	412	87.8	< 0.001
Difficulty concentrating	7035	94.4	6603	94.4	432	92.1	0.04
Nausea	6688	89.5	6331	90.4	357	76.0	< 0.001
Shortness of breath	6574	88.1	6206	88.7	368	78.5	< 0.001
Palpitation	6537	88.1	6171	88.7	366	79.4	< 0.001
Chest pain	5857	78.6	5527	79.1	330	70.7	< 0.001
Tremulousness	5715	76.8	5408	77.6	307	65.3	< 0.001
Blurred vision	5574	74.8	5261	75.4	313	66.7	< 0.001
≥ 1 GI symptoms	7350	98.4	6905	98.6	445	94.7	< 0.001
Neurologic symptoms—foot	6896	92.6	6516	93.4	380	81.7	< 0.001
Neurologic symptoms—hand	6821	91.7	6473	92.2	391	83.9	< 0.001
Allergic-like symptoms	5081	68.7	4789	69.1	292	62.4	0.003

GI, gastrointestinal.