Each MHC group participant (n=30) was brought to the procedure room by its mother. The mother sat in a comfortable chair with back support. She held her baby close to her chest, with the baby's head in a crossed position so that it could see its mother. The same nurse collected the blood sample. The mother communicated with the baby verbally and made eye contact with it to calm it down during the procedure. She was holding the baby both during and after the procedure.

Each PHC group participant (n=30) was brought to the procedure room by its father. The father sat in a comfortable chair with back support. He held his baby close to his chest, with the baby's head in a crossed position so that it could see its father. The same nurse collected the blood sample. The father communicated with the baby verbally and made eye contact with it to calm it down during the procedure. He was holding the baby both during and after the procedure.

The control group participants (n=32) underwent the procedure according to the routine clinical practice. Either parent brought the baby into the procedure room and laid it on the procedure table in the supine position. The nurse collected the blood sample. The parent was present in the room and communicated with the baby only verbally during the procedure. The parent picked up the baby after the procedure.

Holding is an effective non-pharmacological method for reducing procedural pain. Minor painful procedures, such as heel pricks, are easy to use, practical, non-invasive, and affordable procedures when performed when the neonate is held/cuddled by one of its parents. Neonates held/cuddled by their mothers are likely to experience less pain and cry less during heel pricks. The MHC and PHC methods help neonates experience tactile, auditory, visual, and olfactory sensory inputs that can enhance analgesic effects. These multisensory methods can alleviate the pain experienced by the infant during minor painful procedures and shorten the crying time. This type of analgesia may be mediated by multisensory stimulation associated with the mother/father-infant attachment.

The scale is used to assess procedural pain in neonates. It is a behavioral scale assessing five behavioral indicators (facial expression, cry, arms, legs, and state of alertness) and one physiological indicator (breathing patterns). Five items (facial expression, breathing pattern, arms, legs, and state of alertness) are scored as 0 (Good) or 1 (Bad), while one item (crying) is scored as 0 (Good), 1, or 2 (Bad). The total scale score ranges from 0 to 7, with higher scores indicating more pain.

The duration of total crying time during the procedure is between when the heel is pricked and the injection site is covered with a cotton pad.