Donor mothers portrayal and associated variables with breast milk donation in a Human Milk Bank

Vieira, Ana Clara; Duda, Maria Eduarda Holzer; Abreu, Isabella Schroeder; Schiessel, Dalton Luiz; Vieira, Daniele Gonçalves; Saldan, Paula Chuproski

doi:10.1590/1678-9865202437e230055

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Original - Maternal and Infant Nutrition • Rev. Nutr. 37 • 2024 • https://doi.org/10.1590/1678-9865202437e230055 copy

Donor mothers portrayal and associated variables with breast milk donation in a Human Milk Bank

Retrato das mães doadoras e variáveis associadas à doação de leite materno em um Banco de Leite Humano

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Objective

To describe and analyze the donor mothers’ profile and variables associated with breast milk donation at Human Milk Bank in the municipality of Guarapuava, Paraná, Brazil.

Methods

This was a cross-sectional study obtained from information contained in the donor registration form between the period July 2013 (implementation of the service) to December 2019. The collected data were tabulated and descriptive analysis of variables and Chi-square and Fischer’s exact association tests were performed.

Results

Of 1,491 records analyzed, this research identified that 70.73% of donors were between 20 to 34 years old; 67.69% had prenatal care at public health network and 61.37% have had cesarean delivery. Most mothers (61.44%) remained as donor for 29 days and 53.83% of them donated up to 500 ml of milk. In addition, statistically significant association was observed between milk volume donated and donation time for the following variables: prenatal place care, gestational age, child's birth weight, child age, and smoking. Maternal age was associated with a higher volume of donated milk.

Conclusion

The study's findings reinforce the approaching importance the possibility of human milk donation during prenatal care, with emphasis on private health service, and throughout the women's and children's health care network, as well as on the community.

Keywords:
Infant newborn; Lactation; Milk banks; Mothers; Public health

Variable / Categories	Frequency (n)	Percentage (%)
Mother's age
≤19 years old	268	18.16
20-34 years	1,044	70.73
35 years or more	164	11.11
Lives with partner
Yes	1,093	80.01
No	273	19.99
Formal job
Yes	620	51.32
No	588	48.68
Maternal parity
Primiparous	816	57.30
Multiparous	608	42.70
Prenatal Service
Public network	880	67.69
Private Network	388	29.85
Public and private network	32	2.46
Gestational Age
Preterm (<37 weeks)	284	22.17
Term (37-41 weeks)	985	76.89
Post-term (≥42 weeks)	12	0.94
Type of delivery
Vaginal	549	38.63
Cesarean section	872	61.37
Birth Weight
<1,500 grams	77	5.33
≥1,500 and <2,500 grams	226	15.65
≥2,500 grams	1,141	79.02
Child's age at the time of registration
Up to 5 days old	525	35.59
6 to 29 days old	440	29.83
1 month or more	510	34.58
Medications
Yes	223	15.78
No	1,190	84.22
Smoking
Yes	68	4.78
No	1,356	95.22
Alcoholism
Yes	6	0.42
No	1,425	99.58
Mother's time as a donor
Up to 29 days	910	61.44
1 to 4 months	474	32.01
5 months or more	97	6.55
Volume of milk donated by the mother
Up to 500 ml	802	53.83
501 to 5,000 ml	565	37.92
5,001 ml or more	123	8.26

Variable	Volume of donated milk (ml)						p-value
	Up to 500 ml n		501 to 5,000 ml		5,001 ml or more
	n	%	n	%	n	%
Mother's age							0.036
≤19 years old	146	18.27	108	19.42	14	11.67
20-34 years	550	68.84	401	72.12	92	76.67
35 years or more	103	12.89	47	8.45	14	11.67
Lives with partner							0.362
Yes	592	80.22	411	78.74	89	84.76
No	146	19.78	111	21.26	16	15.24
Formal job							0.836
Yes	314	50.48	250	51.98	55	52.88
No	308	49.52	231	48.02	49	47.12
Maternal parity							0.156
Primiparous	422	55.02	323	60.26	71	59.17
Multiparous	345	44.98	213	39.74	49	40.83
Prenatal service							<0.001*
Public Network	475	70.06	345	68.05	60	52.63
Private Network	180	26.55	155	30.57	52	45.61
Public and private network	23	3.39	7	1.38	2	1.75
Gestational Age							<0.001*
Preterm	202	29.45	71	14.49	10	9.62
Term	476	69.39	417	85.10	92	88.46
Post-term	8	1.17	2	0.41	2	1.92
Type of delivery							0.381
Vaginal	303	39.56	209	38.63	37	32.74
Cesarean section	463	60.44	332	61.37	76	67.26
Birth Weight							<0.001*
<1,500 grams	47	5.99	27	4.95	2	1.77
≥1,500 and < 2,500 grams	157	20.03	62	11.36	7	6.19
≥2,500 grams	580	73.98	457	83.70	104	92.04
Child's Age							<0.001
Up to 5 days old	353	44.46	150	26.93	21	17.07
6 to 29 days old	217	27.33	162	29.08	61	49.59
1 month or more	224	28.21	245	43.99	41	33.33
Medications							0.334
Yes	128	16.86	80	14.90	14	12.07
No	631	83.14	457	85.10	102	87.93
Smoking							0.001*
Yes	51	6.68	15	2.78	2	1.68
No	713	93.32	525	97.22	117	98.32
Alcoholism							1.000*
Yes	4	0.52	2	0.37	0	0.00
No	763	99.48	540	99.63	121	100.00

Variable	Donation time (days/months)						p-value
	Up to 29 days		1 to 4 months		5 months or more
	n	%	n	%	n	%
Mother's age							0.336
≤19 years old	168	18.50	85	18.32	13	13.68
20-34 years	630	69.38	337	72.63	72	75.79
35 years or more	110	12.11	42	9.05	10	10.53
Lives with partner							0.423
Yes	670	79.86	341	79.12	75	85.23
No	169	20.14	90	20.88	13	14.77
Formal job							0.677
Yes	368	50.41	211	53.15	40	51.95
No	362	49.59	186	46.85	37	48.05
Maternal parity							0.340
Primiparous	486	55.80	265	58.76	58	62.37
Multiparous	385	44.20	186	41.24	35	37.63
Prenatal service							0.043*
Public Network	549	69.58	280	66.67	46	54.12
Private Network	223	28.26	127	30.24	37	43.53
Public and private network	17	2.15	13	3.10	2	2.35
Gestational Age							<0.001*
Preterm	215	27.49	57	13.90	9	10.84
Term	558	71.36	350	85.37	74	89.16
Post-term	9	1.15	3	0.73	0	0.00
Type of delivery							0.386
Vaginal	347	39.93	164	36.04	34	38.64
Cesarean section	522	60.07	291	63.96	54	61.36
Birth Weight							<0.001*
<1,500 grams	52	5.84	23	5.02	2	2.30
≥1,500 and <2,500 grams	182	20.43	37	8.08	5	5.75
≥2,500 grams	657	73.74	398	86.90	80	91.95
Child's Age							<0.001
Up to 5 days old	408	45.28	99	21.11	16	16.49
6 to 29 days old	250	27.75	147	31.34	41	42.27
1 month or more	243	26.97	223	47.55	40	41.24
Medications							0.510
Yes	144	16.74	67	14.69	12	13.48
No	716	83.26	389	85.31	77	86.52
Smoking							0.002*
Yes	53	6.11	14	3.06	0	0.00
No	814	93.89	444	96.94	91	100.00
Alcoholism							0.215*
Yes	6	0.69	0	0.00	0	0.00
No	864	99.31	461	100.00	92	100.00

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[1] Correspondence to:
PC SALDAN. E-mail: <pchuproski@unicentro.br>.