| Variable . | Analysis 1: All Pregnancies in 2007–2017, No. (%) . | Analysis 2: Pregnancy Intervals Starting in 2007–2017, No. (%) . |
|---|---|---|
| Women evaluated, no. (%) | 1 042 647 (100.0) | 697 456 (100.0) |
| Age group, y | ||
| 15–19 | 130 808 (12.6) | 107 842 (15.5) |
| 20–24 | 288 543 (27.7) | 204 837 (29.4) |
| 25–29 | 285 297 (27.4) | 177 778 (25.5) |
| 30–34 | 199 201 (19.1) | 119 158 (17.1) |
| 35–39 | 102 833 (9.9) | 64 044 (9.2) |
| 40–44 | 31 851 (3.1) | 21 123 (3.0) |
| 45–49 | 4114 (0.4) | 2674 (0.4) |
| HIV status, ART status | ||
| Negative/undiagnosed | 866 587 (83.1) | 568 706 (81.5) |
| Positive, ART-naivea | 71 289 (6.8) | 74 656 (10.7) |
| Positive, ART-experienced | 104 771 (10.0) | 54 094 (7.8) |
| Pregnancy outcome | ||
| Live birth | 600 398 (57.6) | 372 653 (53.4) |
| Stillbirth | 13 521 (1.3) | 8506 (1.2) |
| Neonatal death | 6294 (0.6) | 3628 (0.5) |
| Miscarriage | 14 319 (1.4) | 7401 (1.1) |
| Induced abortion | 30 463 (2.9) | 15 881 (2.3) |
| Unspecified/ambiguous | 377 652 (36.2) | 289 387 (41.5) |
| Population group | ||
| Mixed race | 457 525 (43.9) | 301 018 (43.2) |
| Black African | 493 304 (47.3) | 322 171 (46.2) |
| White | 37 487 (3.6) | 28 976 (4.2) |
| Other/unspecified | 54 331 (5.2) | 45 291 (6.5) |
| Year | ||
| 2007 | 59 315 (5.7) | 55 228 (7.9) |
| 2008 | 93 186 (8.9) | 86 333 (12.4) |
| 2009 | 85 843 (8.2) | 75 671 (10.9) |
| 2010 | 77 638 (7.5) | 63 086 (9.1) |
| 2011 | 74 972 (7.2) | 56 744 (8.1) |
| 2012 | 79 056 (7.6) | 56 115 (8.1) |
| 2013 | 92 851 (8.9) | 62 785 (9.0) |
| 2014 | 106 744 (10.2) | 69 952 (10.0) |
| 2015 | 118 672 (11.4) | 76 335 (10.9) |
| 2016 | 121 435 (11.7) | 75 034 (10.8) |
| 2017 | 132 935 (12.8) | 20 173 (2.9) |
| Variable . | Analysis 1: All Pregnancies in 2007–2017, No. (%) . | Analysis 2: Pregnancy Intervals Starting in 2007–2017, No. (%) . |
|---|---|---|
| Women evaluated, no. (%) | 1 042 647 (100.0) | 697 456 (100.0) |
| Age group, y | ||
| 15–19 | 130 808 (12.6) | 107 842 (15.5) |
| 20–24 | 288 543 (27.7) | 204 837 (29.4) |
| 25–29 | 285 297 (27.4) | 177 778 (25.5) |
| 30–34 | 199 201 (19.1) | 119 158 (17.1) |
| 35–39 | 102 833 (9.9) | 64 044 (9.2) |
| 40–44 | 31 851 (3.1) | 21 123 (3.0) |
| 45–49 | 4114 (0.4) | 2674 (0.4) |
| HIV status, ART status | ||
| Negative/undiagnosed | 866 587 (83.1) | 568 706 (81.5) |
| Positive, ART-naivea | 71 289 (6.8) | 74 656 (10.7) |
| Positive, ART-experienced | 104 771 (10.0) | 54 094 (7.8) |
| Pregnancy outcome | ||
| Live birth | 600 398 (57.6) | 372 653 (53.4) |
| Stillbirth | 13 521 (1.3) | 8506 (1.2) |
| Neonatal death | 6294 (0.6) | 3628 (0.5) |
| Miscarriage | 14 319 (1.4) | 7401 (1.1) |
| Induced abortion | 30 463 (2.9) | 15 881 (2.3) |
| Unspecified/ambiguous | 377 652 (36.2) | 289 387 (41.5) |
| Population group | ||
| Mixed race | 457 525 (43.9) | 301 018 (43.2) |
| Black African | 493 304 (47.3) | 322 171 (46.2) |
| White | 37 487 (3.6) | 28 976 (4.2) |
| Other/unspecified | 54 331 (5.2) | 45 291 (6.5) |
| Year | ||
| 2007 | 59 315 (5.7) | 55 228 (7.9) |
| 2008 | 93 186 (8.9) | 86 333 (12.4) |
| 2009 | 85 843 (8.2) | 75 671 (10.9) |
| 2010 | 77 638 (7.5) | 63 086 (9.1) |
| 2011 | 74 972 (7.2) | 56 744 (8.1) |
| 2012 | 79 056 (7.6) | 56 115 (8.1) |
| 2013 | 92 851 (8.9) | 62 785 (9.0) |
| 2014 | 106 744 (10.2) | 69 952 (10.0) |
| 2015 | 118 672 (11.4) | 76 335 (10.9) |
| 2016 | 121 435 (11.7) | 75 034 (10.8) |
| 2017 | 132 935 (12.8) | 20 173 (2.9) |
For analysis 1, characteristics of all pregnancies in the database are presented. For analysis 2, characteristics are presented only for the index pregnancy (ie, the first pregnancy in the database), and we exclude HIV-positive women with no CD4+ T-cell count measurements and women whose estimated pregnancy end date is after the end of 2017.
Abbreviations: ART, antiretroviral therapy; HIV, human immunodeficiency virus.
aIn analysis 1, pregnancies are only classified as involving HIV-positive women if there is evidence of HIV before the pregnancy outcome date; in analysis 2, pregnancy intervals are classified as HIV positive if there is any evidence of HIV (ie, evidence before or after the index pregnancy outcome date).
| Variable . | Analysis 1: All Pregnancies in 2007–2017, No. (%) . | Analysis 2: Pregnancy Intervals Starting in 2007–2017, No. (%) . |
|---|---|---|
| Women evaluated, no. (%) | 1 042 647 (100.0) | 697 456 (100.0) |
| Age group, y | ||
| 15–19 | 130 808 (12.6) | 107 842 (15.5) |
| 20–24 | 288 543 (27.7) | 204 837 (29.4) |
| 25–29 | 285 297 (27.4) | 177 778 (25.5) |
| 30–34 | 199 201 (19.1) | 119 158 (17.1) |
| 35–39 | 102 833 (9.9) | 64 044 (9.2) |
| 40–44 | 31 851 (3.1) | 21 123 (3.0) |
| 45–49 | 4114 (0.4) | 2674 (0.4) |
| HIV status, ART status | ||
| Negative/undiagnosed | 866 587 (83.1) | 568 706 (81.5) |
| Positive, ART-naivea | 71 289 (6.8) | 74 656 (10.7) |
| Positive, ART-experienced | 104 771 (10.0) | 54 094 (7.8) |
| Pregnancy outcome | ||
| Live birth | 600 398 (57.6) | 372 653 (53.4) |
| Stillbirth | 13 521 (1.3) | 8506 (1.2) |
| Neonatal death | 6294 (0.6) | 3628 (0.5) |
| Miscarriage | 14 319 (1.4) | 7401 (1.1) |
| Induced abortion | 30 463 (2.9) | 15 881 (2.3) |
| Unspecified/ambiguous | 377 652 (36.2) | 289 387 (41.5) |
| Population group | ||
| Mixed race | 457 525 (43.9) | 301 018 (43.2) |
| Black African | 493 304 (47.3) | 322 171 (46.2) |
| White | 37 487 (3.6) | 28 976 (4.2) |
| Other/unspecified | 54 331 (5.2) | 45 291 (6.5) |
| Year | ||
| 2007 | 59 315 (5.7) | 55 228 (7.9) |
| 2008 | 93 186 (8.9) | 86 333 (12.4) |
| 2009 | 85 843 (8.2) | 75 671 (10.9) |
| 2010 | 77 638 (7.5) | 63 086 (9.1) |
| 2011 | 74 972 (7.2) | 56 744 (8.1) |
| 2012 | 79 056 (7.6) | 56 115 (8.1) |
| 2013 | 92 851 (8.9) | 62 785 (9.0) |
| 2014 | 106 744 (10.2) | 69 952 (10.0) |
| 2015 | 118 672 (11.4) | 76 335 (10.9) |
| 2016 | 121 435 (11.7) | 75 034 (10.8) |
| 2017 | 132 935 (12.8) | 20 173 (2.9) |
| Variable . | Analysis 1: All Pregnancies in 2007–2017, No. (%) . | Analysis 2: Pregnancy Intervals Starting in 2007–2017, No. (%) . |
|---|---|---|
| Women evaluated, no. (%) | 1 042 647 (100.0) | 697 456 (100.0) |
| Age group, y | ||
| 15–19 | 130 808 (12.6) | 107 842 (15.5) |
| 20–24 | 288 543 (27.7) | 204 837 (29.4) |
| 25–29 | 285 297 (27.4) | 177 778 (25.5) |
| 30–34 | 199 201 (19.1) | 119 158 (17.1) |
| 35–39 | 102 833 (9.9) | 64 044 (9.2) |
| 40–44 | 31 851 (3.1) | 21 123 (3.0) |
| 45–49 | 4114 (0.4) | 2674 (0.4) |
| HIV status, ART status | ||
| Negative/undiagnosed | 866 587 (83.1) | 568 706 (81.5) |
| Positive, ART-naivea | 71 289 (6.8) | 74 656 (10.7) |
| Positive, ART-experienced | 104 771 (10.0) | 54 094 (7.8) |
| Pregnancy outcome | ||
| Live birth | 600 398 (57.6) | 372 653 (53.4) |
| Stillbirth | 13 521 (1.3) | 8506 (1.2) |
| Neonatal death | 6294 (0.6) | 3628 (0.5) |
| Miscarriage | 14 319 (1.4) | 7401 (1.1) |
| Induced abortion | 30 463 (2.9) | 15 881 (2.3) |
| Unspecified/ambiguous | 377 652 (36.2) | 289 387 (41.5) |
| Population group | ||
| Mixed race | 457 525 (43.9) | 301 018 (43.2) |
| Black African | 493 304 (47.3) | 322 171 (46.2) |
| White | 37 487 (3.6) | 28 976 (4.2) |
| Other/unspecified | 54 331 (5.2) | 45 291 (6.5) |
| Year | ||
| 2007 | 59 315 (5.7) | 55 228 (7.9) |
| 2008 | 93 186 (8.9) | 86 333 (12.4) |
| 2009 | 85 843 (8.2) | 75 671 (10.9) |
| 2010 | 77 638 (7.5) | 63 086 (9.1) |
| 2011 | 74 972 (7.2) | 56 744 (8.1) |
| 2012 | 79 056 (7.6) | 56 115 (8.1) |
| 2013 | 92 851 (8.9) | 62 785 (9.0) |
| 2014 | 106 744 (10.2) | 69 952 (10.0) |
| 2015 | 118 672 (11.4) | 76 335 (10.9) |
| 2016 | 121 435 (11.7) | 75 034 (10.8) |
| 2017 | 132 935 (12.8) | 20 173 (2.9) |
For analysis 1, characteristics of all pregnancies in the database are presented. For analysis 2, characteristics are presented only for the index pregnancy (ie, the first pregnancy in the database), and we exclude HIV-positive women with no CD4+ T-cell count measurements and women whose estimated pregnancy end date is after the end of 2017.
Abbreviations: ART, antiretroviral therapy; HIV, human immunodeficiency virus.
aIn analysis 1, pregnancies are only classified as involving HIV-positive women if there is evidence of HIV before the pregnancy outcome date; in analysis 2, pregnancy intervals are classified as HIV positive if there is any evidence of HIV (ie, evidence before or after the index pregnancy outcome date).
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