Sentence examples for missing values concerning from inspiring English sources
At variance with urinary output, there were only nine missing values regarding serum Na and no missing values concerning DDAVP use.
Missing values concerning the primary outcome (WHQ) were imputed by using base-line value in case a 6-month value was missing; 22 persons had imputed values in 1 9 items of WHQ.
Those patients who discontinued prior to the end of the second treatment cycle or who had missing values concerning KI were considered as non-responders in terms of KI benefit response in the primary analysis (worst case scenario).
Multiple imputations for missing values concerning the questionnaires were performed using all baseline characteristics (age, sex, type of fracture, hand dominance and comorbidity) and existing variables of the EuroQol-5D and PRWHE.
The last SAAPPQ-question "In general, I like drinkers" was systematically missing and caused a missing value, concerning 67 GPs.
Missing values from completers concerning secondary outcomes were substituted by the 'last-observation-carried-forward' principle.
The database on prematurity studied in this paper has a low overall percentage of missing values and concerns a large sample.
Not all variables sum up to N = 3,220/N = 2,004 due to missing values as follows: 189/141 missings concerning marital status, 503/565 missings concerning living situation, 89/184 missings concerning employment status, 127/202 missings concerning severity of illness at admission, 270/1,264 missings concerning psychosocial functioning, 240/283 missings concerning severity of illness at discharge.
One further problem was the relatively large number of missing values for the questions concerning pasture access.
Missing values were a concern for only two variables included in the final models—smoking status and cholesterol and we treated them as a separate category, using indicator variables.
This method relies on the generation of several plausibly completed data sets (M ≥ 2), accounting for all levels of uncertainty concerning the missing values.
