From: Preparing linked population data for research: cohort study of prisoner perinatal health outcomes
Non-prisoners | Prisonersa | All MHMb | All Prisoners | All study women | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No MHMb | MHMb | No MHMb | MHMb | ||||||||||
Person records: | 37,533 | 25,857 | 935 | 2,152 | 28,009 | 3,087 | 66,477 | ||||||
Reason censored | N | ‰ | N | ‰ | N | ‰ | N | ‰ | N | ‰ | N | ‰ | N |
Duplicated births | 5 | 0.1 | 4 | 0.2 | 1 | 1.1 | 0 | 0 | 4 | 0.1 | 1 | 0.3 | 10 |
Too many maternities | 8 | 0.2 | 6 | 0.2 | 1 | 1.1 | 7 | 3.3 | 308 | 10.9 | 8 | 2.6 | 22 |
Non-chronological maternities | 25 | 0.7 | 29 | 1.1 | 4 | 4.3 | 26 | 12.1 | 55 | 2 | 30 | 9.7 | 84 |
Concurrent maternities | 42 | 1.1 | 37 | 1.4 | 6 | 6.4 | 20 | 9.3 | 57 | 2 | 36 | 11.7 | 115 |
Inconsistent incarceration data | – | – | – | – | 29 | 31.0 | 314 | 145.9 | 312 | 11.1 | 343 | 111.1 | 343 |
Missing incarceration data | – | – | – | – | 18 | 19.3 | 41 | 19.1 | 41 | 1.5 | 59 | 19.1 | 59 |
Conception in prison | – | – | – | – | 28 | 29.3 | 35 | 16.3 | 35 | 1.2 | 63 | 20.4 | 63 |
Maternity reasonc | 64 | 1.7 | 62 | 2.4 | 10 | 10.7 | 42 | 19.5 | 104 | 3.7 | 52 | 16.8 | 178 |
Study mothers: | 37,469 | 25,795 | 850 | 1,739 | 27,534 | 2,589 | 65,853 | ||||||
Censored % | 0.2 | 0.2 | 9.1 | 19.2 | 1.7 | 16.1 | 0.9 |