Skip to main content
. 2010 Jan 20;2010(1):CD003974. doi: 10.1002/14651858.CD003974.pub3

Carbajal 1999.

Methods Design: three group parallel trial 
 Purpose: examine the analgesic effect of glucose, sucrose and pacifiers in term infants
Participants Patients: newborn infants in need of venipunctures 
 Baseline comparability: yes
Interventions Placebo: 2 minutes before venipuncture sterile water was given to the infant orally with a syringe for 30 seconds 
 Untreated: no sugar, pacifier or water 
 Experimental: 
 ‐glucose in syringe 
 ‐sucrose in syringe 
 ‐pacifier 
 ‐sucrose in syringe and pacifier 
 (Co‐intervention: no)
Outcomes Pain (Douleur Aiguë du Nouveau‐né (DAN) scale (0 to 10 points)) during venipuncture
Notes Outcome reported as medians (both placebo and no treatment: 7) and interquartile ranges (6‐10, and 5‐10)). Individual results were reported, and we recalculated the outcome as means and SD
Risk of bias
Bias Authors' judgement Support for judgement
Adequate sequence generation? Low risk ‘random numbers table'
Allocation concealment? Low risk ‘treatment allocations inserted in opaque sealed envelopes numbered 1‐150. Investigators were blind to these allocations.'
Blinding? 
 Treatment provider Unclear risk NS
Blinding? 
 Outcome assessor Unclear risk NS
Incomplete outcome data addressed? 
 All outcomes High risk Drop‐out > 15% or NS
Free of selective reporting? Unclear risk No protocol available
Free of other bias? Low risk  
No signs of variance inequality or skewness? Low risk No variance inequality (F‐test not statistically significant) and no skewness (1.64 standard deviations does not exceed the mean)
Trial size > 49? Low risk N = 50
Clearly concealed allocation + trial size > 49 + drop‐out max 15% High risk Drop‐out > 15% or NS