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Table 2 Mixed effects analysis of the relationship between ASQ and colic and sleep problems

From: Association between colic and sleep problems in infancy and subsequent development, emotional and behavioral problems: a longitudinal study

  ASQ
Variable B 95% CI p-values
Colic
 Time    
 Baseline (6 months) ref   
  18 months − 0.03 − 0.06 to   0.00   0.02
  3 years    0.03 − 0.00 to - 0.06   0.07
  5 years −0.10 − 0.14 to - 0.06 < 0.01
Sleep duration a
 Time    
 Baseline (6 months) ref   
  18 months   0.09   0.04 to 0.14 < 0.01
  3 years   0.08    0.01 to 0.14    0.02
  5 years −0.02 − 0.11 to 0.07    0.62
Frequent nocturnal awakenings b
 Time    
 Baseline (6 months) ref   
  18 months −0.06 −0.01 to - 0.02 < 0.01
  3 years −0.01 −0.01 to - 0.03 < 0.01
     5 years   0.01 −0.01 to - 0.02    0.26
Easy to put to bed c
 Time    
 Baseline (6 months) ref   
  18 months −0.06 −0.08 to − 0.03 < 0.01
  3 years   0.03    0.00 to − 0.5    0.04
  5 years −0.09 − 0.01 to − 0.05 < 0.01
  1. *Adjusted for ICQ. Mother’s education, mother’s age
  2. aSleep duration: Hours of sleep per day
  3. bFrequent nocturnal awakenings: Usually wakes during the night
  4. cEasy to put to bed: Easy to put to bed and falls asleep quickly