Table 5 Stratified analysis of the extent of nausea caused by palate and tongue cleaning

From: Cleaning the palate and tongue without nausea: a mixed methods study exploring the appropriate depth and direction of oral care

Stratification factor Palate Tongue
Extent of nausea (sagittal) Extent of nausea (coronal) Z P-value Extent of nausea (sagittal) Extent of nausea (coronal) Z P-value
Sex
Male 1 (0–5) 2 (0–4)  − 0.336 0.737 2 (0–3) 1 (0–3)  − 1.588 0.112
Female 1 (0–2) 1 (0–2)  − 2.434 0.015 1 (0–3.5) 1 (0–3)  − 2.574 0.010
Height
 ≥ 163.00 cm 1 (0–3) 1 (0–3)  − 1.036 0.300 2 (0–3) 1 (0–2)  − 3.121 0.002
 < 163.00 cm 1 (0–2) 1 (0–2)  − 2.061 0.039 1 (0–4) 2 (0–4)  − 1.088 0.277
BMI
Overweight and obese 1 (0–3) 1 (0–3)  − 0.427 0.669 1 (0–3) 1 (0–2)  − 1.681 0.093
Normal 1 (0–2) 1 (0–2)  − 1.984 0.047 2 (0–4) 1 (0–3)  − 2.416 0.016
Underweight 2 (1–4) 2 (1–3)  − 1.026 0.305 2 (0–4) 2 (0–3)  − 0.966 0.334