Table 1 Mean, standard deviation and description of all variables

Degree of stunting

0.1252

0.2073

Height-for-age z-score (WHO) scaled to the interval [0,1]

Degree of stunting >0 if height-for-age z-score <−2 SD

Weighted fractional rank deviation

0

0.2952

Based on the wealth indices provided by the DHS

Age of child

29.8571

17.8084

In months

Squared age of child

303.3724

270.6317

Term is mean-centered: (age of child −29.8571)²

Sex of child

0.5140

0.5110

Male (1), female (0)

Residence type

0.1237

0.3366

Urban (1), rural (0)

Education of mother

1.3446

2.8587

In years

Education of partner/husband

2.7439

3.8141

In years

Safe drinking water

0.4614

0.5097

Available (1), not available (0)

Satisfactory sanitation

0.1234

0.3362

Available (1), not available (0)