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Table 1 Characteristics of studies included in the review

From: Return of fertility after discontinuation of contraception: a systematic review and meta-analysis

Authors & FP method Publication year Type of contraception Sample size Duration of use Pregnancy rate Design of the study Setting
Implants
  [24] Affandi et al. 1999 Implanon 80 mean 35.3 month 48.80 Prospective Indonesia
  [24] Affandi et al. 1999 Norplant 80 mean 55.8 month 37.50 Prospective Indonesia
  [25] Buckshee et al. 1995 Norplant II 159 30.0 ± 11.5 months 80.30 Prospective India
  [26] Sivin et al. 1992 Norplant II 116 Mean 29.1 month 84.00 Prospective obs. Not specified
  [26] Sivin et al. 1992 Norplant VI 62 Mean 33.6 ± 1.9 83.00 Prospective obs. Not specified
  [27] Singh et al 1989 Norplant 100   90.00 prospective Singapore
  [28] Affandi et al 1987 Norplant VI 51 32.4 ± 8.8 months 76.50 Prospective Indonesia
  [29] Diaz et al 1987 Norplant VI 87 1–8 years 85.6 Prospective Chile
waited mean (12 month Return rate of pregnancy among ex-users of implants) 74.70   
Injectable
  [30] Bahamondes et al. 1997 Cyclofem-monthly 70 7.1 ± 4.6 cycle 82.90 Prospective 4 countriesa
  [31] ICMR task Force 1986 Norethisterone 69 11.9 ± 4.9 months 72.50 Prospective India
Waited mean (12 month Return rate of pregnancy among ex-users of injectable) 77.74   
Oral contraceptives
  [32] Barnhart et al. 2009 Oralcontraceptives 21   81.00 Prospective multicenter
  [33] Cronin et al. 2009 Oralcontraceptives 2064 7.2 yrs 79.40 Prospective obs. 7 countriesb
  [34] Wiegratz et al. 2006 30 mcg EE/2 mgDNG 706 21.5 ± 16.8 cycle 94.00 Prospective obs. Germany
  [35] Farrow et al 2002 Oralcontraceptives 8497   88.00 Prospective England
  [36] Zimmermann 1999 31 mcg EE/2 mgDNG 348 med. 4-6 cycle 95.00 Prospective obs. Germany
Waited mean (12 month Return rate of pregnancy among OC ex-users) 87.04   
Intra uterine device (IUD)
  [37] Delbarge et al 2002 GyneFix 128 mean104.6 ± 93wk 88.00 Prospective Belgium
  [38] Tadesse et al 1996 Copper T-200 780 med. 3.5 years 86.00 Prospective obs. Ethiopia
  [39] Anderson et al 1992 Nova-T 71 Median 21 month 71.20 Prospective 5 countriesc
  [39] Andersson et al 1992 LNG-20 IUS 138 Median 19 months 79.10 Prospective 5 countries
  [26] Sivin et al. 1992 TCu380Ag 103 mean 38.9 months 77.00 Prospective obs. Not specified
  [26] Sivin et al. 1992 LNG-20 IUS 91 mean 30.2 months 84.00 Prospective obs. Not specified
  [40] Gupta et al. 1989 Copper plus Prog. 91 56% b2 years 92.30 prospective Not specified
  [28] Affandi et al 1987 Lippes C IUDs 75 31.8 ± 8.6 month 74.70 Prospective Indonesia
  [41] Skjeldestad et al 1987 Copper IUDs 101 56% b24 months 81.00 Prospective obs. Norway
  [42] Belhadji et al. 1986 TCu380Ag 50 23.96 months 91.10 Prospective Not specified
  [31] ICMR Task Force 1986 Copper T-200 110 28.2 ± 14.7 months 83.60 Prospective India
  [42] Belhadji et al. 1986 LNG-20 IUS 60 22.72 months 96.40 Prospective Not specified
  [43] Randic et al 1985 all forms of IUD 576 59% b3 years 86.10 Prospective Yugoslavia
Waited mean (12 month Return rate of pregnancy among IUD ex-users) 84.75   
  1. obs observational, FP Family planning, OC oral contraception
  2. aBrazil, Chile, Columbia, Peru
  3. bAustria, Belgium, Denmark, France, Germany, Netherlands, UK
  4. cDenmark, Finland, Hungary, Norway, Sweden