Sentence examples for missing data years from inspiring English sources

aProportions do not add to 100% due to missing data: years after menopause, n = 54; race, n = 1 refused; education, n = 3; household income, n = 20; age of menarche, n = 3.

Finally, we dropped those who had missing data re years of education attained (N = 8).

After substituting missing data on years of parent's education with the mean value, among 1,376 and 2,728 elementary and secondary students, 1,086 (78.9%) and 2,479 (90.9%) elementary and secondary school students had complete data which was used for addressing the first objective.

Women with missing data on year of birth or on the year of birth of their (grand)mother were excluded.

In sensitivity analyses, however, the deviation score varied from −72% (using raw baseline disability status scale scores, rather than applying a "no improvement" algorithm) to 156% (imputing missing data for year two from progression rates for year one).

Further efforts are being made to trace patients with missing data at year two, a disproportionate number of whom might have stopped taking treatment because of more aggressive disease.

Our final models contained all of the previously listed potential confounders and in addition controlled for body anthropometrics as potential mediators (baseline BMI [calculated from measured weight and height], height and measured waist circumference, and self-report of BMI at age 50 years; because of missing data, age 50 years BMI was imputed from age, race, and baseline BMI in 128 women).

The mean age of the patients with missing data was 75 years, and it was 68 years for the group with complete data.

The mean age (SD) for those analysed in the subsample was 56.1 (12.0) years and for those excluded in subsample because of missing data was 55.4 (13.3) years.

Second, the analysis was cross-sectional and some assumptions were made to deal with missing data in some years.

Modelled risk at baseline was missing for 15.5% of the population, while missing data at 5 years ranged from 29% for systolic blood pressure to 37% for albumin creatinine ratio (ACR).