| Employee insurance (Kempo) | Nonemployee insurance (Kokuho) | Standardized mean difference | |
|---|---|---|---|
| (N = 740,217) | (N = 3,312,042) | ||
| Male | 402,376 (54.4%) | 1,616,526 (48.8%) | −0.112 |
| Age (years) | |||
| 0-4 | 16,888 (2.3%) | 24,336 (0.7%) | −0.132 |
| 5-9 | 40,313 (5.4%) | 70,975 (2.1%) | −0.174 |
| 10-14 | 42,618 (5.8%) | 86,262 (2.6%) | −0.160 |
| 15-19 | 44,768 (6.0%) | 96,423 (2.9%) | −0.151 |
| 20-24 | 47,994 (6.5%) | 103,664 (3.1%) | −0.160 |
| 25-29 | 41,750 (5.6%) | 98,092 (3.0%) | −0.128 |
| 30-34 | 45,981 (6.2%) | 104,111 (3.1%) | −0.148 |
| 35-39 | 54,825 (7.4%) | 134,070 (4.0%) | −0.147 |
| 40-44 | 62,651 (8.5%) | 161,838 (4.9%) | −0.144 |
| 45-49 | 77,164 (10.4%) | 201,677 (6.1%) | −0.157 |
| 50-54 | 85,474 (11.5%) | 223,506 (6.7%) | −0.167 |
| 55-59 | 75,132 (10.1%) | 206,144 (6.2%) | −0.143 |
| 60-64 | 48,995 (6.6%) | 265,457 (8.0%) | 0.054 |
| 65-69 | 29,651 (4.0%) | 532,098 (16.1%) | 0.411 |
| 70-74 | 26,013 (3.5%) | 1,003,389 (30.3%) | 0.766 |
| Disease categories | Crude prevalence | Age- and sex-adjusted prevalence | ||||
|---|---|---|---|---|---|---|
| Kempo | Kokuho | SMD | Kempo | Kokuho | SMD | |
| Infectious diseases | 10.2% | 12.8% | 0.083 | 10.9% | 10.9% | −0.003 |
| Malignancies | 2.1% | 4.9% | 0.155 | 2.5% | 2.2% | −0.015 |
| Endocrinological diseases | 17.1% | 33.5% | 0.383 | 19.0% | 18.8% | −0.005 |
| Mental disorders | 7.2% | 11.5% | 0.148 | 7.2% | 10.6% | 0.119 |
| Neurological diseases | 9.8% | 19.8% | 0.284 | 10.5% | 14.0% | 0.107 |
| Eye diseases | 17.8% | 21.3% | 0.090 | 18.6% | 15.4% | −0.085 |
| Cardiovascular diseases | 13.1% | 31.1% | 0.445 | 14.8% | 15.4% | 0.016 |
| Respiratory diseases | 24.4% | 24.9% | 0.012 | 25.9% | 24.3% | −0.035 |
| Gastrointestinal diseases | 49.0% | 45.3% | −0.075 | 50.1% | 34.1% | −0.329 |
| Kidney or genitourinary diseases | 9.9% | 14.2% | 0.133 | 10.8% | 10.2% | −0.022 |
| Cancer | Crude prevalence | Age- and sex-adjusted prevalence | ||||
|---|---|---|---|---|---|---|
| Kempo | Kokuho | SMD | Kempo | Kokuho | SMD | |
| Stomach | 0.3% | 0.7% | 0.057 | 0.4% | 0.4% | −0.009 |
| Colon | 0.3% | 0.8% | 0.063 | 0.4% | 0.5% | 0.006 |
| Bronchus and lungs | 0.2% | 0.6% | 0.058 | 0.3% | 0.3% | 0.005 |
| Breast | 1.5% | 1.9% | 0.029 | 1.5% | 1.2% | −0.026 |
| Uterine cervix | 0.2% | 0.2% | 0.006 | 0.2% | 0.2% | 0.009 |
| Prostate | 0.6% | 1.6% | 0.088 | 1.0% | 0.7% | −0.030 |
