Table 1.

Data of nursery mother and the infants' status.

Parameter	Total number (n)	Percentage (%)	Min	Max	Mean ± SD
Age of infant (day)	42	100.0	3	520	162 ± 139
Age of mother (year)	42	100.0	17	44	28.3 ± 7.08
Income rate < minimum wage	21	50.0
Income rate ≥ minimum wage	21	50.0
Residing in urban area	25	59.5
Residing in suburban area	17	40.4
Using copper equipment	13	31.0
Not using copper equipment	29	69.0