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Table 4 Adjusted associations for low birth weight and small for gestational age

From: First trimester use of artemisinin-based combination therapy and the risk of low birth weight and small for gestational age

 

Prevalence-ratio (95% CIc)

Unadjusteda

p-value

Adjustedb

p-value

LBW

 Birth weights measured within 24 h of birth (N)

1543

 

1533

 

  No exposure

1 (reference)

 

1 (reference)

 

  Artemisinin

0.80 (0.31; 1.62)

0.575

0.91 (0.36; 1.81)

0.809

  Quinine

1.95 (0.87; 3.42)

0.099

2.17 (1.00; 3.65)

0.049

 Birth weights measured within 7 days of birth (N)

1915

 

1905

 

  No exposure

1 (reference)

 

1 (reference)

 

  Artemisinin

1.08 (0.55; 1.85)

0.806

1.19 (0.61; 2.00)

0.579

  Quinine

1.87 (0.85; 3.27)

0.109

2.13 (0.98; 3.59)

0.055

  Quinine vs artemisinin

  Artemisinin

1 (reference)

 

1 (reference)

 

  Quinine with no Kenya data (N = 79)

2.03 (0.73; 5.86)

0.172

1.70 (0.60; 5.17)

0.321

  Quinine with Kenya data (N = 118)

3.18 (1.02; 11.56)

0.047

1.93 (0.72; 5.68)

0.188

SGA

 Birth weights measured within 24 h of birth (N)

1520

 

1514

 

  No exposure

1 (reference)

 

1 (reference)

 

  Artemisinin

0.76 (0.37; 1.31)

0.363

0.83 (0.41; 1.42)

0.516

  Quinine

1.31 (0.54; 2.43)

0.495

1.19 (0.50; 2.17)

0.660

 Birth weights measured within 7 days of birth (N)

1888

 

1882

 

  No exposure

1 (reference)

 

1 (reference)

 

  Artemisinin

0.81 (0.43; 1.31)

0.417

0.78 (0.43; 1.25)

0.337

  Quinine

1.29 (0.55; 2.40)

0.514

1.11 (0.47; 2.02)

0.789

  Quinine vs artemisinin

  Artemisinin confirmed

1 (reference)

 

1 (reference)

 

  Quinine confirmed with no Kenya data (N = 78)

13.75 (2.16; 409.72)

0.003

13.11 (1.82; 441.93)

0.004

  Quinine confirmed with Kenya data (N = 116)

14.44 (2.18; 400.29)

0.004

12.04 (1.84; 330.23)

0.008

  1. LBW low birth weight, SGA small for gestational age
  2. aUnadjusted regression includes dummy indicators for site
  3. bAdjusted for site, age at recruitment, gravidity, marital status and education level
  4. c95%CI—95% credible interval based on § posterior distribution replication