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Table 1 Summary of the 10 observational studies assessing the association between Protease Inhibitors based ART and preterm birth included in the meta-analysis

From: Is protease inhibitors based antiretroviral therapy during pregnancy associated with an increased risk of preterm birth? Systematic review and a meta-analysis

First author, ref year

Design

Sample size

Setting/country

Comparison regime

Time of initiation during pre/before pre

PTD type

AOR (95 % CI)

Cotter AM et al., 2006 [8]

Prospective

999

Miami, Florida, USA

Combination without PI

<12wk,12–23wk, 3rd trimester

<37wk

1.8 (1.1,3.0)

Powis KM, et al., 2011 [23]

Randomized

730

Botswana

Triple NRTI based ARTwout PI

Between 26 and 34 weeks

<37wk

2.02 (1.25–3.27)

Grosch-Woerner I et al., 2007 [11]

Prospective

183

Germany & Austria

Mono therapy

>2wks before conception) or during pregnancy

<36wk

3.40 (1.13–10.2)

Schulte J, et al., 2012 [12]

Prospe

8793

Atalanta, Georgia

2drugs

26–42wk

37

1.21 (1.04–1.40)

Watts DH et al., 2013 [24]

Cohort

1869

USA

Mono or dual therapy

1st -3rd trimester

37

1.49 (0.83,2.66)

Tuomala RE et al., 2002 [13]

Trial & cohort

2123

Boston USA

Combination without PI

1st -3rd trimeste

37

1.80 (0.94–3.43)

Patel K et al.,2011 [22]

Prospe cohort

777

USA

Mono/combination without PI

1st -3rd trimeste

37

1.29 (0.77, 2.15)

Szylda EG, et al., 2006 [14]

Prospective cohort

681

Argentina, Bahamas,Brazi, Mexico

1–2 NRTI

Before/during pregnancy

37

1.1 (0.5–2.8)

Townsend CL et al., 2007 [15]

Surveillance

5009

UK

Combination

Before/during pregnancy

37

0.96 (0.78,1.19)

Hankin C et al., 2003 [16]

Prospecti

2326

9 EU country

No ART

>>

37

4.14 (2.36,7.23)