Table 3 Characteristics and quality assessment of included studies
Reference | Country | OECD country (at the time research was conducted) | Year of study | Study design | ICD-10 (2010) or similar definition of PPH used | Timing/severity/amount of PPH used in definition | Number and description of participants included | Data collection | Data reported and timing (HP, <1, ≥1 < 3, ≥3 < 6, ≥6 < 12, =12 months) | Quality assessment |
|---|---|---|---|---|---|---|---|---|---|---|
Chauleur et al. (2008) [25] | France | Yes | 1999–2004 | P, C | Similar | Timing and severity not amount of bleeding | n = 32,463, Primigravida women (women in their first intended pregnancy) | D, MR | HP at <1, ≥1 < 3 | Strong |
Thompson et al. (2011) [27] | Australia and New Zealand | Yes | 2006–07 | P, C | Similar | √ | n = 206, Primiparous and Multiparous women who returned the 1st survey | MR, Q | HP at ≥1 < 3, ≥3 < 6 | Strong |
Bateman et al. (2010) [28] | United States | Yes | 1995–2004 | R, C | ICD-9 | √ | n = 25,654, Primiparous and Multiparous women who had a PPH | MR (national data) | HP at <1 | Moderate |
Liu et al. (2002) [30] | Canada | Yes | 1989–99 | R, C | ICD-9 | √ | n = 2,652,726, Primiparous and Multiparous women who gave birth during a 11 year period | MR (national data) | HP at ≥1 < 3 | Strong |
Naz et al. (2008) [31] | Pakistan | No | 2006 | P, C | Not stated | Severity of bleeding but not amount or timing | n = 705, Primiparous and Multiparous women who had a Primary PPH | MR | HP at <1 | Moderate |
Hoveyda and MacKenzie (2001) [36] | England | Yes | 1996–98 | R | Similar | Severity and timing of bleeding but not amount | n = 19,136, Primiparous and Multiparous women with Primary PPH, and those with Secondary PPH | MR | HP at <1 | Strong |