Table 2. Standardized admission ratios for pregnancy, childbirth, and puerperium outcomes in female firefighters by work duration compared with those in the general Korean population.
| Reason for admissiond | Work duration < 10 yearsa | Work duration ≥ 10 yearsb | Totalc | |||
|---|---|---|---|---|---|---|
| No. | SAR (95% CI) | No. | SAR (95% CI) | No. | SAR (95% CI) | |
| Pregnancy, childbirth, and puerperium outcomes (O00–O99) | 620 | 1.49 (1.37–1.61)e | 189 | 1.96 (1.69–2.26)e | 809 | 1.57 (1.47–1.69)e |
| Pregnancy and abortive outcomes (O00–O08) | 28 | 1.42 (0.94–2.05) | 13 | 2.01 (1.07–3.44)e | 41 | 1.56 (1.12–2.12)e |
| Other maternal disorders predominantly related to pregnancy (O20–O29) | 46 | 2.72 (1.99–3.63)e | 8 | 2.32 (0.99–4.56) | 54 | 2.65 (1.99–3.46)e |
| Maternal care related to the fetus, amniotic cavity, and possible delivery problems (O30–O48) | 79 | 1.92 (1.52–2.39)e | 29 | 3.30 (2.12–4.55)e | 108 | 2.13 (1.76–2.60)e |
| Complications of labor and delivery (O60–O75) | 32 | 1.22 (0.83–1.72) | 17 | 3.25 (1.89–5.21)e | 49 | 1.56 (1.15–2.06)e |
| Delivery (O80–O84) | 566 | 1.84 (1.68–1.99)e | 171 | 2.40 (2.05–2.78)e | 737 | 1.94 (1.80–2.08)e |
| Complications predominantly related to puerperium (O85–O92) | 6 | 4.15 (1.52–9.03)e | 2 | 7.65 (0.86–27.64) | 8 | 4.68 (2.02–9.23)e |
| Other obstetric conditions, those not elsewhere classified (O94–O99) | 2 | 1.07 (0.12–3.90) | 3 | 8.06 (1.62–23.55)e | 5 | 2.25 (0.72–5.24) |
NOTE: The SAR describes the increase or decrease in admissions in the firefighters compared to admissions in the general population.
SAR: standardized admission ratio; CI: confidence interval; ICD-10: 10th revision of the International Statistical Classification of Diseases and Related Health Problems.
aPerson-years, 5,977; bPerson-years, 3,682; cPerson-years, 9,659; dAdmission diagnoses and the numbers following the admission diagnosis refer to the ICD-10 codes; ep-value < 0.05.