Table 4.
Inpatient hospital contact for Sexually Transmitted Infections (STIs), by age, calendar period, parental education level, and psychiatric history
| Any STI | Acute salpingitis | HIV/HBV | |||||||
|---|---|---|---|---|---|---|---|---|---|
| No bereavement | Bereavement | IRR (95 % CI) | No bereavement | Bereavement | IRR (95 % CI) a | No Bereavement | Bereavement | IRR (95 % CI) | |
| Age at follow-up | |||||||||
| 10 to 18 years | 1181 | 71 | 1.15 (0.90–1.45) | 1999 | 163 | 1.46 (1.24–1.71) | 89 | 6 | 1.44 (0.56–3.05) |
| 19 to 29 years | 3709 | 494 | 1.15 (1.04–1.26) | 5785 | 898 | 1.18 (1.08–1.28) | 243 | 56 | 1.98 (1.46–2.65) |
| 30 to 44 years | 1013 | 623 | 1.18 (1.06–1.31) | 3577 | 2479 | 1.19 (1.07–1.33) | 223 | 195 | 1.73 (1.41–2.12) |
| Calendar period of follow-up | |||||||||
| 1987 – 2000 | 4549 | 980 | 1.15 (1.06–1.24) | 10291 | 3101 | 1.24 (1.08–1.42) | 292 | 148 | 1.65 (1.32–2.05) |
| 2001 – 2012 | 1354 | 208 | 1.19 (1.02–1.39) | 1070 | 439 | 1.28 (1.13–1.44) | 263 | 109 | 1.98 (1.54–2.53) |
| Parental education level | |||||||||
| Low/ Missing | 1208 | 598 | 1.18 (1.06–1.31) | 3173 | 2063 | 1.24 (1.00–1.54) | 125 | 125 | 1.79 (1.37–2.34) |
| Middle | 3002 | 428 | 1.15 (1.03–1.27) | 5700 | 1151 | 1.32 (1.09–1.59) | 260 | 99 | 2.03 (1.58–2.59) |
| High | 1693 | 162 | 1.17 (0.99–1.38) | 2488 | 326 | 1.25 (1.02–1.54) | 170 | 33 | 1.48 (0.99–2.17) |
| History of psychiatric disorders | |||||||||
| No | 5353 | 1121 | 1.19 (1.11–1.28) | 10595 | 3318 | 1.28 (1.13–1.45) | 352 | 174 | 2.08 (1.70–2.56) |
| Yes | 550 | 67 | 0.88 (0.67–1.15) | 766 | 222 | 1.26 (1.01–1.58) | 203 | 83 | 1.95 (1.46–2.58) |
| History of substance abuse | |||||||||
| No | 5827 | 1178 | 1.18 (1.10–1.26) | 11253 | 3502 | 1.17 (1.13–1.22) | 408 | 206 | 2.14 (1.77–2.59) |
| Yes | 76 | 10 | 0.78 (0.36–1.51) | 108 | 38 | 1.14 (0.75–1.69) | 147 | 51 | 1.36 (0.95–1.92) |
Notes:
The first hospital visit concerning an STI diagnosis during the unexposed follow-up and the first hospital visit concerning an STI diagnosis during the exposed follow-up were both counted in all analyses
CI confidence interval, HBV hepatitis B virus, HIV human immunodeficiency virus, IRR incidence rate ratio, N number, STIs sexually transmitted infections
IRR was adjusted for attained age (10–12, 13–15, 16–18, 19–21, 22–25, 26–29, 30–34, 35–39, and 40–44), calendar years (5-year group), and parental education levels (low/missing, medium, and high) as a proxy for socioeconomic status
a Negative binomial regression was used due to over-dispersed Poisson regression