Background
Methods
Explanatory variable: mean overtime work hours per month
Outcome: frequency of preventive dental visits
Covariates
Statistical analysis
Results
Men | Women | |||
---|---|---|---|---|
N | % | N | % | |
Total | 11,179 | 75.3 | 3668 | 24.7 |
Age, years | ||||
≦29 | 893 | 8.0 | 716 | 19.5 |
30–39 | 2338 | 20.9 | 932 | 25.4 |
40–49 | 4177 | 37.4 | 1298 | 35.4 |
50–59 | 3771 | 33.7 | 722 | 19.7 |
Occupation | ||||
clerk | 3388 | 30.3 | 1385 | 37.8 |
sales | 4291 | 38.4 | 861 | 23.5 |
research and development | 1428 | 12.8 | 820 | 22.4 |
engineer | 276 | 2.5 | 86 | 2.3 |
production line and engineer | 1567 | 14.0 | 380 | 10.4 |
others | 228 | 2.0 | 135 | 3.7 |
missing | 1 | 0.0 | 1 | 0.0 |
Marriage status | ||||
Married | 8794 | 78.7 | 1779 | 48.5 |
Single | 2085 | 18.7 | 1680 | 45.8 |
Divorce or bereavement | 261 | 2.3 | 179 | 4.9 |
Missing | 39 | 0.3 | 30 | 0.8 |
Education (graduate status) | ||||
Junior high school or high school | 1638 | 14.7 | 913 | 24.9 |
Junior college or technical school or high professional school | 464 | 4.2 | 695 | 18.9 |
College | 6093 | 54.5 | 1354 | 36.9 |
More than graduate school | 2945 | 26.3 | 680 | 18.5 |
Missing | 39 | 0.3 | 26 | 0.7 |
Dental problems | ||||
No | 10,264 | 91.8 | 3410 | 93.0 |
Yes | 615 | 5.5 | 221 | 6.0 |
Missing | 300 | 2.7 | 37 | 1.0 |
Overtime work hours | ||||
None | 1301 | 11.6 | 643 | 17.5 |
< 20 | 6266 | 56.1 | 2302 | 62.8 |
20≦, < 40 | 2765 | 24.7 | 596 | 16.2 |
40≦ | 813 | 7.3 | 105 | 2.9 |
Missing | 34 | 0.3 | 22 | 0.6 |
Quarterly preventive dental visit | Annual preventive dental visit | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Men | Women | Men | Women | ||||||||||
N | % | p value | N | % | p value | N | % | p value | N | % | p value | ||
Age, years | ≤29 | 40 | 4.5 | < 0.001 | 67 | 9.4 | < 0.001 | 149 | 16.7 | < 0.001 | 157 | 21.9 | < 0.001 |
30–39 | 178 | 7.6 | 142 | 15.2 | 545 | 23.3 | 345 | 37.0 | |||||
40–49 | 382 | 9.1 | 154 | 11.9 | 969 | 23.2 | 410 | 31.6 | |||||
50–59 | 437 | 11.6 | 148 | 20.5 | 1009 | 26.8 | 253 | 35.0 | |||||
Occupation | |||||||||||||
clerk | 322 | 9.5 | 0.056 | 193 | 13.9 | 0.898 | 821 | 24.2 | < 0.001 | 447 | 32.3 | 0.031 | |
sales | 427 | 10.0 | 128 | 14.9 | 1116 | 26.0 | 273 | 31.7 | |||||
research and development | 126 | 8.8 | 109 | 13.3 | 356 | 24.9 | 280 | 34.1 | |||||
engineer | 23 | 8.3 | 9 | 10.5 | 49 | 17.8 | 15 | 17.4 | |||||
production line and engineer | 123 | 7.9 | 55 | 14.5 | 285 | 18.2 | 116 | 30.5 | |||||
others | 16 | 7.0 | 17 | 12.6 | 45 | 19.7 | 34 | 25.2 | |||||
Marriage status | Married | 845 | 9.6 | 0.069 | 243 | 13.7 | 0.403 | 2212 | 25.2 | < 0.001 | 593 | 33.3 | 0.027 |
Single | 167 | 8.0 | 234 | 13.9 | 403 | 19.3 | 498 | 29.6 | |||||
Divorce or bereavement | 22 | 8.4 | 31 | 17.3 | 49 | 18.8 | 65 | 36.3 | |||||
Missing | 3 | 7.9 | 3 | 10.0 | 8 | 21.1 | 9 | 30.0 | |||||
Education (graduate status) | Junior high school or high school | 138 | 8.4 | 0.024 | 127 | 13.9 | 0.896 | 300 | 18.3 | < 0.001 | 262 | 28.7 | 0.020 |
Junior college or technical school or high professional school | 38 | 8.2 | 93 | 13.4 | 83 | 17.9 | 206 | 29.6 | |||||
College | 613 | 10.1 | 196 | 14.5 | 1568 | 25.7 | 461 | 34.0 | |||||
More than graduate school | 246 | 8.4 | 92 | 13.5 | 717 | 24.3 | 229 | 33.7 | |||||
Missing | 2 | 5.3 | 3 | 11.5 | 4 | 10.5 | 7 | 26.9 | |||||
Dental problems | No | 897 | 8.7 | < 0.001 | 457 | 13.4 | 0.001 | 2410 | 23.5 | < 0.001 | 1075 | 31.5 | 0.113 |
Yes | 118 | 19.2 | 48 | 21.7 | 219 | 35.6 | 81 | 36.7 | |||||
Missing | 22 | 7.4 | 6 | 16.2 | 43 | 14.4 | 9 | 24.3 | |||||
Overtime work hours | None | 153 | 11.8 | 0.009 | 100 | 15.6 | 0.560 | 384 | 29.5 | < 0.001 | 232 | 36.1 | 0.053 |
< 20 | 576 | 9.2 | 315 | 13.7 | 1479 | 23.6 | 724 | 31.5 | |||||
20≤, < 40 | 240 | 8.7 | 83 | 13.9 | 634 | 22.9 | 174 | 29.2 | |||||
40≤ | 68 | 8.4 | 12 | 11.4 | 169 | 20.8 | 31 | 29.5 | |||||
Missing | 0 | 0 | 1 | 4.5 | 6 | 17.6 | 4 | 18.2 |
The number of participant | Quarterly preventive dental visit | Annual preventive dental visit | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Men | Women | Men | Women | ||||||||||||
Age | Overtime work hours | Men | Women | aOR | 95%CI | p-value | aOR | 95%CI | p-value | aOR | 95%CI | p-value | aOR | 95%CI | p-value |
≦29 | None | 53 | 70 | Reference | Reference | Reference | Reference | ||||||||
< 20 | 557 | 487 | 0.62 | 0.17–2.22 | 0.464 | 1.63 | 0.55–4.85 | 0.382 | 1.56 | 0.58–4.18 | 0.376 | 1.24 | 0.63–2.42 | 0.531 | |
20≦, < 40 | 214 | 117 | 0.50 | 0.12–2.04 | 0.331 | 2.06 | 0.59–7.16 | 0.257 | 1.33 | 0.48–3.70 | 0.589 | 1.00 | 0.44–2.25 | 0.991 | |
40≦ | 41 | 22 | a − | – | – | a − | – | – | 0.82 | 0.20–3.37 | 0.783 | a − | – | – | |
30–39 | None | 106 | 188 | Reference | Reference | Reference | Reference | ||||||||
< 20 | 1450 | 566 | 0.97 | 0.47–1.97 | 0.924 | 0.68 | 0.43–1.08 | 0.101 | 0.74 | 0.48–1.16 | 0.193 | 0.74 | 0.52–1.05 | 0.092 | |
20≦, < 40 | 629 | 148 | 0.71 | 0.33–1.55 | 0.392 | 0.96 | 0.52–1.77 | 0.905 | 0.73 | 0.45–1.17 | 0.193 | 0.63 | 0.39–1.01 | 0.057 | |
40≦ | 151 | 30 | 0.64 | 0.23–1.72 | 0.373 | 0.60 | 0.19–1.91 | 0.387 | 0.63 | 0.35–1.15 | 0.131 | 0.62 | 0.26–1.44 | 0.263 | |
40–49 | None | 509 | 259 | Reference | Reference | Reference | Reference | ||||||||
< 20 | 2239 | 799 | 0.91 | 0.65–1.27 | 0.567 | 0.74 | 0.49–1.14 | 0.171 | 0.76 | 0.61–0.95 | 0.017 | 0.77 | 0.57–1.05 | 0.098 | |
20≦, < 40 | 1078 | 202 | 1.02 | 0.69–1.49 | 0.933 | 0.58 | 0.32–1.07 | 0.083 | 0.84 | 0.65–1.09 | 0.194 | 0.76 | 0.50–1.14 | 0.182 | |
40≦ | 347 | 38 | 1.04 | 0.64–1.67 | 0.882 | 0.71 | 0.23–2.18 | 0.551 | 0.72 | 0.51–1.00 | < 0.05 | 1.10 | 0.53–2.30 | 0.792 | |
50–59 | None | 633 | 126 | Reference | Reference | Reference | Reference | ||||||||
< 20 | 2020 | 450 | 0.73 | 0.56–0.95 | 0.019 | 1.18 | 0.68–2.03 | 0.553 | 0.75 | 0.61–0.91 | 0.004 | 1.02 | 0.65–1.60 | 0.928 | |
20≦, < 40 | 844 | 129 | 0.75 | 0.54–1.04 | 0.085 | 1.06 | 0.54–2.06 | 0.869 | 0.76 | 0.59–0.97 | 0.028 | 0.89 | 0.51–1.54 | 0.668 | |
40≦ | 274 | 15 | 0.55 | 0.34–0.90 | 0.017 | 1.54 | 0.43–5.47 | 0.507 | 0.63 | 0.45–0.88 | 0.007 | 1.52 | 0.50–4.63 | 0.459 |
The number of participants | Quarterly preventive dental visit | Annual preventive dental visit | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Men | Women | Men | Women | ||||||||||||
Age | Overtime work hours | Men | Women | aOR | 95%CI | p-value | aOR | 95%CI | p-value | aOR | 95%CI | p-value | aOR | 95%CI | p-value |
≦29 | None | 41 | 62 | Reference | Reference | Reference | Reference | ||||||||
< 20 | 538 | 465 | 0.54 | 0.15–1.90 | 0.336 | 1.20 | 0.40–3.60 | 0.745 | 1.91 | 0.65–5.61 | 0.241 | 1.14 | 0.57–2.28 | 0.720 | |
20≦, < 40 | 195 | 111 | 0.44 | 0.10–1.85 | 0.262 | 1.69 | 0.49–5.86 | 0.410 | 1.63 | 0.53–4.97 | 0.395 | 0.94 | 0.40–2.17 | 0.878 | |
40≦ | 34 | 22 | a − | – | – | a − | – | – | 1.09 | 0.25–4.81 | 0.908 | a − | – | – | |
30–39 | None | 100 | 180 | Reference | Reference | Reference | Reference | ||||||||
< 20 | 1380 | 522 | 1.03 | 0.48–2.17 | 0.949 | 0.68 | 0.42–1.10 | 0.117 | 0.77 | 0.49–1.22 | 0.264 | 0.73 | 0.51–1.05 | 0.095 | |
20≦, < 40 | 583 | 144 | 0.74 | 0.32–1.69 | 0.475 | 1.07 | 0.58–1.99 | 0.829 | 0.75 | 0.46–1.23 | 0.252 | 0.64 | 0.39–1.05 | 0.078 | |
40≦ | 137 | 26 | 0.67 | 0.23–1.94 | 0.465 | 0.58 | 0.16–2.12 | 0.411 | 0.65 | 0.35–1.20 | 0.170 | 0.68 | 0.28–1.66 | 0.395 | |
40–49 | None | 481 | 237 | Reference | Reference | Reference | Reference | ||||||||
< 20 | 2069 | 741 | 0.98 | 0.68–1.40 | 0.910 | 0.77 | 0.49–1.19 | 0.238 | 0.77 | 0.62–0.97 | 0.028 | 0.76 | 0.55–1.04 | 0.082 | |
20≦, < 40 | 985 | 189 | 1.20 | 0.80–1.79 | 0.390 | 0.59 | 0.31–1.12 | 0.107 | 0.89 | 0.68–1.16 | 0.386 | 0.74 | 0.48–1.13 | 0.157 | |
40≦ | 325 | 36 | 1.16 | 0.70–1.91 | 0.569 | 0.56 | 0.16–1.99 | 0.370 | 0.76 | 0.54–1.07 | 0.119 | 1.04 | 0.48–2.22 | 0.927 | |
50–59 | None | 569 | 105 | Reference | Reference | Reference | Reference | ||||||||
< 20 | 1804 | 415 | 0.68 | 0.51–0.90 | 0.008 | 1.25 | 0.71–2.20 | 0.443 | 0.71 | 0.58–0.88 | 0.001 | 1.02 | 0.65–1.63 | 0.917 | |
20≦, < 40 | 748 | 119 | 0.68 | 0.48–0.97 | 0.032 | 1.11 | 0.55–2.23 | 0.766 | 0.75 | 0.58–0.96 | 0.025 | 0.90 | 0.51–1.59 | 0.711 | |
40≦ | 245 | 15 | 0.53 | 0.31–0.89 | 0.016 | 1.63 | 0.45–5.85 | 0.456 | 0.63 | 0.44–0.89 | 0.009 | 1.54 | 0.50–4.70 | 0.450 |