Tertiles of job control score | P trend | |||
First tertile | Second tertile | Third tertile | ||
Any infection | ||||
Number of individuals* | 10 004 | 8544 | 6481 | |
Number of infections* | 3324 | 2740 | 2193 | |
Person-years* | 138 710 | 116 403 | 90 752 | |
Andersen–Gill model | ||||
HR (95% CI)† | 1.00 (reference) | 0.99 (0.91 to 1.07) | 1.02 (0.93 to 1.10) | 0.802 |
HR (95% CI)‡ | 1.00 (reference) | 0.99 (0.91 to 1.08) | 1.02 (0.93 to 1.12) | 0.685 |
HR (95% CI)§ | 1.00 (reference) | 0.99 (0.91 to 1.09) | 1.02 (0.92 to 1.13) | 0.755 |
Upper respiratory tract infections | ||||
Number of infections* | 760 | 588 | 494 | |
Person-years* | 138 940 | 116 566 | 90 851 | |
Prentice, Williams and Peterson model | ||||
HR (95% CI)† | 1.00 (reference) | 0.95 (0.84 to 1.07) | 1.01 (0.88 to 1.15) | 0.966 |
HR (95% CI)‡ | 1.00 (reference) | 0.94 (0.83 to 1.07) | 1.00 (0.87 to 1.16) | 0.900 |
HR (95% CI)§ | 1.00 (reference) | 0.92 (0.80 to 1.05) | 0.99 (0.86 to 1.15) | 0.728 |
Lower respiratory tract infections | ||||
Number of infections* | 321 | 246 | 212 | |
Person-years* | 139 022 | 116 601 | 90 892 | |
Prentice, Williams and Peterson model | ||||
HR (95% CI)† | 1.00 (reference) | 0.92 (0.77 to 1.10) | 0.97 (0.81 to 1.16) | 0.619 |
HR (95% CI)‡ | 1.00 (reference) | 0.94 (0.78 to 1.14) | 1.00 (0.81 to 1.23) | 0.918 |
HR (95% CI)§ | 1.00 (reference) | 0.98 (0.80 to 1.20) | 1.05 (0.84 to 1.31) | 0.749 |
Gastrointestinal tract infections | ||||
Number of infections* | 377 | 320 | 273 | |
Person-years* | 138 741 | 116 305 | 90 654 | |
Prentice, Williams and Peterson model | ||||
HR (95% CI)† | 1.00 (reference) | 1.05 (0.90 to 1.22) | 1.13 (0.96 to 1.32) | 0.152 |
HR (95% CI)‡ | 1.00 (reference) | 1.04 (0.88 to 1.22) | 1.13 (0.95 to 1.34) | 0.200 |
HR (95% CI)§ | 1.00 (reference) | 1.04 (0.88 to 1.24) | 1.10 (0.92 to 1.33) | 0.300 |
Skin infections | ||||
Number of infections* | 462 | 379 | 309 | |
Person-years* | 138 961 | 116 510 | 90 845 | |
Prentice, Williams and Peterson model | ||||
HR (95% CI)† | 1.00 (reference) | 0.97 (0.83 to 1.13) | 0.97 (0.83 to 1.14) | 0.689 |
HR (95% CI)‡ | 1.00 (reference) | 0.97 (0.83 to 1.13) | 0.98 (0.83 to 1.16) | 0.783 |
HR (95% CI)§ | 1.00 (reference) | 0.95 (0.80 to 1.12) | 0.98 (0.82 to 1.17) | 0.733 |
Urinary tract infections | ||||
Number of infections* | 347 | 329 | 217 | |
Person-years* | 138 964 | 116 522 | 90 895 | |
Prentice, Williams and Peterson model | ||||
HR (95% CI)† | 1.00 (reference) | 1.14 (0.98 to 1.34) | 0.98 (0.82 to 1.16) | 0.873 |
HR (95% CI)‡ | 1.00 (reference) | 1.14 (0.97 to 1.35) | 0.97 (0.81 to 1.17) | 0.918 |
HR (95% CI)§ | 1.00 (reference) | 1.16 (0.97 to 1.39) | 0.95 (0.77 to 1.17) | 0.938 |
Other infections | ||||
Number of infections* | 1007 | 813 | 649 | |
Person-years* | 138 763 | 116 415 | 90 747 | |
Prentice, Williams and Peterson model | ||||
HR (95% CI)† | 1.00 (reference) | 0.99 (0.89 to 1.09) | 0.99 (0.89 to 1.10) | 0.840 |
HR (95% CI)‡ | 1.00 (reference) | 0.97 (0.87 to 1.07) | 0.96 (0.86 to 1.08) | 0.500 |
HR (95% CI)§ | 1.00 (reference) | 0.96 (0.86 to 1.07) | 0.96 (0.85 to 1.09) | 0.487 |
Analyses are conducted using survival models for recurrent events.
*Numbers refer to observations included in the age-adjusted and sex-adjusted models.
†Adjusted by age and sex. N=25 029.
‡Adjusted by age, sex, education, physical activity, shift work, Charlson’s index and income. N=24 379.
§Adjusted by age, sex, education, physical activity, shift work, Charlson’s index, income, smoking status, body mass index, alcohol and sleep duration. N=21 647.