R/primary-coding.R
    categorize_phq8_ecu_2.RdCategorize PHQ-8 sum score in "No depression", "Mild depression", "Moderate depression" and "Severe depression"
categorize_phq8_ecu_2(ecu_phq8_sum)A factorized vector w/ levels "No depression", "Mild depression", "Moderate depression" and "Severe depression"