This is more than the estimated total burden of microplastics currently present in ocean water.» (sciencenordic.com)
To create quasi-diagnostic variables that closely mirror DSM - IV diagnoses, children were coded with a 1 if they endorsed the requisite symptoms and demonstrated significant distress (score of 3 or 4 on distress questions) or impaired functionality / burden (a score of +2 standard deviations above the mean on total burden variable). (link.springer.com)
Previous estimates pegged India's total burden of TB at 2.2 million. (sciencedaily.com)