Table 3. Research areas using HIRA (or NHI) data.
| Class | Reference | Linkage to other data | Derived variables | Working definitions | Methods |
|---|---|---|---|---|---|
| Adherence and persistence, prescribing pattern | (21) | No | Persistency | Yes | Kaplan-Meier survival analysis |
| (22) | No | Persistency | Yes | Cox proportional hazard | |
| (20) | No | MPR | Yes | Multivariate logistic regression analysis | |
| (24) | No | CMA | Yes | Multiple logistic regression analysis | |
| (23) | No | CMA | Yes | Multiple logistic regression analysis | |
| (19) | No | MPR | Yes | Cox proportional hazard | |
| Healthcare utilization | (40) | NHIC — Medicaid-aid case management center | No | No | Logistic regression analysis (multivariate) |
| (41) | No | No | No | Multivariate logistic regression analysis | |
| (12) | Suicides were identified by the investigator's note from National Police Agency | No | No | Multiple logistic regression analysis, repeated-measure data analysis (proc mixed procedure) | |
| (42) | No | Crude surgery rate | Yes | Poisson regression model | |
| (13) | No | No | No | Multivariate logistic regression analysis | |
| (43) | No | No | No | Multilevel analysis (linear mixed models with random intercept) | |
| (44) | No | No | No | Two-level random effect logistic regression model | |
| (45) | No | No | No | Multiple regression analysis | |
| (46) | No | No | No | Multiple logistic regression analysis | |
| (14) | KNHANES II | No | No | Multivariate logistic regression analysis | |
| (18) | No | CCI | No | Multiple logistic regression model | |
| (47) | No | No | No | Descriptive summary of statistics | |
| (48) | No | No | No | Descriptive summary of statistics | |
| (49) | No | No | No | Multiple regression analysis | |
| (16) | No | CCI | No | Descriptive summary of statistics | |
| (50) | No | No | No | Descriptive summary of statistics | |
| (51) | No | No | No | Multiple regression analysis | |
| (25) | No | No | No | Multiple regression analysis | |
| Burden of disease | (52) | No | No | No | Descriptive summary of statistics |
| Incidence or prevalence | (30) | No | No | No | Descriptive summary of statistics |
| (53) | No | No | No | Descriptive summary of statistics | |
| (31) | No | No | No | Descriptive summary of statistics | |
| (32) | No | No | No | Descriptive summary of statistics | |
| (33) | No | No | No | Descriptive summary of statistics | |
| (34) | No | No | No | Life table method | |
| (35) | No | No | No | Descriptive summary of statistics | |
| (36) | No | No | No | Descriptive summary of statistics | |
| (37) | No | No | No | Descriptive summary of statistics | |
| Outcomes | (54) | No | No | Yes | PSM/Cox proportional hazard |
| (17) | No | Charlson score | Yes | Descriptive summary of statistics/multivariate regression | |
| Adverse event | (15) | No | Charlson score | No | PSM |
| Policy evaluation | (55) | No | No | No | Adjusted rate |
| (56) | No | No | No | - | |
| (57) | No | No | No | Descriptive summary | |
| Health informatics and others | (58) | Population data from Statistics Korea | Lengthiness index, costliness index, etc | No | Clustering, decision tree, stratification |
| (59) | National Cancer Center | Charlson score | No | Multivariate analysis | |
| (60) | Statistics Korea | No | No | Multivariate logistic analyses |
HIRA data is also called NHI data; The list is selective and not mutually exclusive because some fall into multiple categories.
HIRA = Health Insurance and Review Assessment, NHI = National Health Insurance, NHIC = National Health Information Center, MPR = medication possession ratio, CMA = cumulative medication adherence, KNHANES = Korean National Health and Nutritional Survey, CCI = Charlson Comorbidity Index, PSM = propensity score matching.