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. 2017 Oct 10;5(6):800–804. doi: 10.3889/oamjms.2017.185

Table 3.

Risk of occurrence of certain health effects due to exposure to nitrous oxide

Health effects Odds ratio (OR) Relative Risk (RR)
Headache OR = 15.75 RR = 5.06
95% CI; 2.86 to 86.57 95% CI; 1.37 to 18.64

Dizziness OR = 8.40 RR = 2.85
95% CI; 2.11 to 33.29 95% CI; 1.29 to 6.26

Nausea / vomiting OR = 5.20 RR = 1.89
95% CI; 1.31 to 20.48 95% CI; 1.14 to 3.45

Euphoria OR = 10.80 RR = 3.13
95% CI; 2.61 to 44.52 95% CI; 1.42 to 6.89

Excitement OR = 2.79 RR = 1.64
95% CI; 0.79 to 9.76 95% CI; 0.85 to 3.15

Depression OR = 2.0 RR = 1.33
95% CI; 0.42 to 9.33 95% CI; 0.75 to 2.36

Stiffness of the hands / feet OR = 2.57 RR = 1.48
95% CI; 0.64 to 10.21 95% CI; 0.87 to 2.51

Tingling of hands / legs OR = 2.75 RR = 1.54
95% CI; 0.74 to 10.10 95% CI; 0.90 to 2.64

Hypertension OR = 0.52 RR = 0.73
95% CI; 0.14 to 1.92 95% CI; 0.37 to 1.43

Tachycardia OR = 5.26 RR = 2.24
95% CI; 1.42 to 19.46 95% CI; 1.10 to 4.56

Women-spontaneous abortion OR = 1.85 RR = 1.28
95% CI; 0.38 to 9.0 95% CI; 0.71 to 2.31