Characteristics of women with hyperemesis gravidarum at hospitalization stratified according to their depression, anxiety and stress status as assessed by the 21-stem Depression Anxiety and Stress Scales.

Data presented as mean ± standard deviation, median [interquartile range] and number (%). Bivariate analyses are with Student t test for continuous data set, Mann Whitney U test for ordinal or non-parametric data, Fisher Exact test for 2×2 categorical dataset and Chi Square test for larger categorical dataset. All tests are 2-sided. Multivariable logistic regression analysis performed if multiple co-variables with bivariate P<0.05 found, incorporating in the model all the significant co-variables to identify independent risk factors for depression, anxiety and stress respectively.
*A calculated score of at least 10 on the summated (then doubled) scores of the depression component of the 21-stem Depression, Anxiety and Stress Scales
†A calculated score of at least 8 on the summated (then doubled) scores of the anxiety component of the 21-stem Depression, Anxiety and Stress Scales
‡Multivariable logistic regression performed incorporating co-variables with P<0.05 on bivariate analyses where available to obtain adjusted P value.
§A calculated score of at least 15 on the summated (then doubled) scores of the stress component of the 21-stem Depression, Anxiety and Stress Scales
∥Month income of less than RM3000 (approximately US$950)
¶Serum sodium level ≤ 135 mmol/L as defined by the normal range provided by our laboratory
#Serum potassium level ≤ 3.5 mmol/L as defined by the normal range provided by our laboratory
**Cut-offs defined as top quartile values for these parameters in the HG cohort