Table 4. Standard admission ratios for pregnancy, childbirth, and puerperium outcomes in female firefighters by work duration in each job type compared with those in the general Korean population.
| Reason for admissiong | Work duration | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fire suppression | Emergency medical service | Office | ||||||||||
| No. | < 10 yearsa | No. | ≥ 10 yearsb | No. | < 10 yearsc | No. | ≥ 10 yearsd | No. | < 10 yearse | No. | ≥ 10 yearsf | |
| Pregnancy, childbirth, and puerperium outcomes (O00–O99) | 251 | 1.40 (1.23–1.58)h | 59 | 1.90 (1.44–2.45)h | 390 | 1.55 (1.40–1.71)h | 91 | 2.19 (1.77–2.69)h | 225 | 1.42 (1.23–1.61)h | 18 | 1.23 (0.73–1.95) |
| Pregnancy and abortive outcomes (O00–O08) | 13 | 2.87 (1.77–4.38)h | 3 | 2.69 (0.54–7.86) | 18 | 1.47 (0.87–2.32) | 7 | 2.57 (1.03–5.30)h | 13 | 1.65 (0.88–2.82) | 1 | 0.89 (0.02–4.96) |
| Other maternal disorders predominantly related to pregnancy (O20–O29) | 21 | 2.87 (1.77–4.38)h | 2 | 1.79 (0.20–6.48) | 27 | 2.77 (1.76–3.89)h | 3 | 2.01 (0.40–5.37) | 18 | 2.84 (1.67–4.48)h | 2 | 3.91 (0.44–14.10) |
| Maternal care related to the fetus, amniotic cavity, and possible delivery problems (O30–O48) | 26 | 1.46 (0.96–2.14) | 7 | 2.37 (0.95–4.88) | 59 | 2.39 (1.82–3.08)h | 16 | 4.06 (2.32–6.59)h | 29 | 1.86 (1.25–2.67)h | 1 | 0.72 (0.01–4.00) |
| Complications of labor and delivery (O60–O75) | 13 | 1.14 (0.61–1.95) | 5 | 2.97 (0.96–6.92) | 23 | 1.47 (0.93–2.21) | 10 | 4.44 (2.13–8.17)h | 11 | 1.12 (0.56–2.00) | 0 | - |
| Delivery (O80–O84) | 230 | 1.72 (1.51–1.96)h | 55 | 2.39 (1.80–3.11)h | 355 | 1.90 (1.71–2.11)h | 80 | 2.59 (2.05–3.22)h | 211 | 1.79 (1.51–1.96)h | 17 | 2.59 (0.93–2.55) |
| Complications predominantly related to puerperium (O85–O92) | 1 | 1.58 (0.02–8.79) | 0 | - | 4 | 4.68 (1.26–11.98)h | 1 | 9.06 (0.11–50.36) | 1 | 1.86 (0.02–10.35) | 1 | 24.30 (0.32–13.80) |
| Other obstetric conditions, those not elsewhere classified (O94–O99) | 1 | 1.24 (0.02–6.91) | 0 | - | 2 | 1.80 (0.20–6.53) | 2 | 12.56 (1.41–45.35)h | 2 | 2.87 (0.32–10.37) | 0 | - |
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, 2,504; bPerson-years, 1,353; cPerson-years, 3,978; dPerson-years, 1,358; ePerson-years, 2,682; fPerson-years, 866; gAdmission diagnoses and the numbers following the admission diagnosis refer to the ICD-10 codes; hp-value < 0.05.