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Table 1 Baseline characteristics of 137 children in rural Tanzania

From: Determinants of early child development in rural Tanzania

Variables n Mean Standard deviation %
Bodyweight at enrolment (0–17 days) 137 3.39 kg 0.49  
WAZ at enrolment (0–17 days) 137 − 0.13 0.91  
Gender 137    
 Male 60    43.8
 Female 77    56.2
Tribe
 Iraqw 103    85.8
 Datog 10    8.3
 Other 7    2.5
 Missing 17    2.5
Nutritional status 0.8
 LAZ at 6 months 137 − 1.24 1.05  
 LAZ ≤ − 2 (stunted) 28    20.4
 WAZ at 6 months 137 − 0.60 1.12  
 WAZ ≤ − 2 (wasted) 14    10.2
 WLZ at 6 months 137 0.32 1.20  
 WLZ ≤ −2 (malnourished) 4    2.9
Socioeconomic status
 WAMI index 135b 0.21 0.12  
 Sanitationa 135b 1.81 2.17  
 Assets 135b 1.90 1.64  
 Maternal education (years) 135b 5.20 2.78  
 Income per month (TZH shilling)a 135b 42,861 58,698  
 Mother’s age (years) 121c 29.31 6.61  
 Mother’s number of pregnanciesa 122d 4.70 2.81  
Home environment
 Emotional and verbal responsivitya 137 6.70 0.85  
 Organization 137 3.04 2.18  
 Opportunitiesa 137 2.77 0.58  
 Cleanliness of childa 137 2.48 0.93  
Cognitive development at 15 months
 Bayley total score 137 43.15 8.55  
 Bayley cognitive score 137 11.50 4.13  
 Bayley language score 137 8.26 3.99  
 Bayley fine motor scorea 137 10.94 1.43  
 Bayley gross motor score 137 12.45 2.45  
  1. LAZ length-for-age z-score; WAZ weight-for-age z-score; WLZ weight-for-length z-score; WAMI index water, assets, maternal education, and income
  2. aNot normally distributed
  3. bMissing 2
  4. cMissing 16
  5. dMissing 15