Other Signs and symptoms reported by Dr. Beck in his study (without notation of frequency) as published in JAMA were:
Nervous/mental - depression, restlessness, anxiety, fears, introspection, emotional upheavals, mental retardation/memory defects, confusion, drowsiness, insomnia, paresthesia, speech defects, paraplegia, vasomotor instability/morbid flushing, local sweating, cold extremities, purplish congestion of hands & feet, tinnitus aurium, visual disturbances, change in sense of smell.
Neuromuscular - pain in back, shoulders, epigastrium, lower abdomen and chest, cardiospasm, G.I. spasm, dysuria, cramping of toes and muscle twitching.
G.I. Manifestations - glossitis, dysphagia, anorexia, nausea, vomiting.
Cardiorespiratory Manifestations - decreased blood pressure and bradycardia were seen in 30% of the patients, and hypotension in 50%.
Genito-Urinary Manifestations - Vesical irritability, nocturia, dysuria, pollakuria, incontinence (several), dysmenorrhea, menorrhagia, amenorrhea, and decreased libido in women.
Comments: Note how similar the complaints and conditions on this page and the previous one are to those that appear in studies today, some 60+ years later. The physical effects (headache, nausea, confusion, weakness, etc.), the sensory effects (visual disturbances, tinnitus, etc,), the cognitive and memory effects (mental retardation, memory defects), and the emotional and mood effects (depression, anxiety, etc.).
It is unfortunate that Dr. Beck did not separate the acute effects/symptoms that were occurring during the CO exposure from the longterm/residual effects that endured for weeks, months and years after CO exposure ended. The paper hints at residual effects, but nowhere are they clearly stated as continuing post-CO.