Journal List > Korean J Women Health Nurs > v.21(4) > 1089519

Kim and Tak: Maternal Role Development in Neonatal Intensive Care Unit Graduate Mothers of Premature Infant

Abstract

Purpose

The aim of this study was to determine the predictive factors for maternal role development for mothers of premature infants.

Methods

A descriptive correlational study was conducted. A total sample of 121 mothers of premature infants following discharge from the neonatal intensive care unit were recruited using two strategies; an internet-based survey and an in-person data collection in a tertiary university hospital in Korea. A self-report questionnaire was used to collect data regarding personal, birth variables, marital intimacy, maternal attachment, maternal identity and maternal role development.

Results

A hierarchical multiple regression analysis indicated that parity, maternal attachment, marital intimacy and maternal identity were predictors for maternal role development for mothers of premature infants, accounting for 70% of the variance. Among these variables, maternal attachment is the most powerful predictor for maternal role development.

Conclusion

Nursing interventions during hospitalization to post-discharge education that includes parents of premature babies with positive interaction between couples strengthening marital intimacy and promotes maternal attachment that leads to integrate maternal identity should be considered by priority. Community-based family services such as home visits should be focused on maximizing the predictive factors for maternal role development in transition to motherhood that can contribute to maternal health as well as optimal growth and development of premature infants.

Figures and Tables

Figure 1

Maternal role development model among NICU graduate mothers of premature infants based on Mercer's becoming a mother theory.

kjwhn-21-308-g001
Table 1

Maternal Attachment, Maternal Identity, Marital Intimacy and Maternal Role Development according to Subjects' Characteristics (N=121)

kjwhn-21-308-i001
Characteristics Categories n (%) or M±SD Maternal attachment Maternal identity Marital intimacy Maternal role development
M±SD x2kw or Z (p) M±SD t or F (p) post-hoc M±SD t or F (p) post-hoc M±SD x2kw or Z (p)
Characteristics of mothers
Age (year) 32.6±3.84
Education level High school 19 (15.7) 95.21±8.36 2.32
(.507)
46.63±8.81a 4.76
(.004)
a,b<d
3.52±0.72 2.08
(.106)
6.83±1.13 6.19
(.103)
Junior college 25 (20.7) 95.60±10.95 49.08±9.80b 3.51±0.76 7.27±1.00
University 71 (58.7) 96.06±8.13 52.24±8.90c 3.71±0.65 7.31±1.03
Graduate school 6 (5.0) 99.67±6.50 61.17±9.28d 4.20±0.49 7.77±1.30
Occupation Yes 44 (36.4) 95.00±8.70 -0.94
(.347)
51.48±9.56 0.28
(.775)
3.81±0.67 1.80
(.074)
7.28±0.94 -0.32
(.748)
No 77 (63.6) 96.58±8.69 50.96±9.54 3.58±0.68 7.23±1.13
Religion Yes 67 (55.4) 97.12±7.05 -1.18
(.237)
51.67±8.68 0.67
(.503)
3.67±0.62 0.05
(.955)
7.29±0.94 -0.40
(.684)
No 54 (44.6) 94.63±10.28 50.50±10.50 3.66±0.77 7.20±1.20
Monthly household income (10,000 won) <100 2 (1.7) 94.50±0.71 3.50
(.477)
35.00±8.49 1.58
(.183)
4.45±0.19 1.01
(.403)
6.77±1.09 1.78
(.775)
100~299 47 (38.8) 95.45±9.74 51.38±10.92 3.59±0.70 7.15±1.27
300~499 51 (42.1) 95.67±8.54 51.02±7.82 3.68±0.71 7.22±0.98
500~699 14 (11.6) 99.29±5.38 52.50±7.83 3.62±0.57 7.60±0.59
≥700 7 (5.8) 96.14±9.14 52.43±12.14 3.90±0.72 7.56±0.76
Family system type Nuclear family 108 (89.3) 96.43±7.82 1.19
(.551)
51.57±9.29 1.01
(.366)
3.67±0.70 1.00
(.368)
7.28±1.06 1.55
(.461)
With parents-in-law 7 (5.8) 91.14±7.97 47.29±11.63 3.34±0.63 7.00±1.26
With her own parents 6 (5.0) 94.17±8.64 48.00±11.10 3.84±0.47 6.91±0.84
Length of marriage (year) 3.98±3.09
Parity Primiparous 88 (72.7) 96.12±9.00 -0.54
(.587)
51.43±9.63 0.53
(.595)
3.68±0.70 0.37
(.706)
7.34±1.08 -2.53
(.011)
Multiparous 33 (27.3) 95.70±7.93 50.39±9.28 3.63±0.67 7.00±0.98
Pregnancy intention Yes 92 (76.0) 96.60±8.34 -1.05
(.292)
51.71±9.03 1.15
(.252)
3.69±0.69 0.68
(.497)
7.34±1.04 -2.45
(.014)
No 29 (24.0) 94.14±9.65 49.38±10.87 3.59±0.69 6.95±1.10
Delivery mode Vaginal 36 (29.8) 95.19±8.41 -1.13
(.257)
50.72±9.20 -0.32
(.750)
3.67±0.68 0.10
(.916)
7.15±0.96 -0.85
(.395)
Cesarean 85 (70.2) 96.35±8.84 51.33±9.69 3.66±0.69 7.29±1.10
Discharge education With husband 52 (43.0) 97.42±7.36 5.06
(.080)
52.48±9.30 1.29
(.277)
3.85±0.63a 5.22
(.007)
b<a
7.42±1.08 3.53
(.171)
Without husband 45 (37.2) 93.78±10.39 49.40±9.49 3.42±0.73b 7.03±1.07
No participation 24 (19.8) 97.13±7.20 51.54±9.89 3.72±0.58c 7.28±0.96
Characteristics of premature infants
Corrected age (months) 4.88±3.54
<6 68 (56.2) 96.34±7.78 0.47
(.638)
51.00±9.50 -0.19
(.846)
3.67±0.68 0.11
(.906)
7.54±0.74 0.14
(.889)
≥6 53 (43.8) 95.58±9.80 51.34±9.62 3.66±0.69 7.52±0.87
Gestational age (weeks) 31.73±3.44
Birth weight (grams) 1710.7±620.4
Multiple pregnancy Multiplet 39 (32.2) 95.23±9.80 -0.61
(.541)
50.10±9.17 -0.83
(.406)
3.53±0.66 -1.53
(.129)
7.26±0.89 -0.88
(.376)
Singleton 82 (67.8) 96.38±8.15 51.65±9.68 3.73±0.69 7.24±1.14
Congenital defect or severe complications Yes 24 (19.8) 91.71±11.39 -2.66
(.008)
48.54±11.89 -1.25
(.218)
3.57±0.81 -0.78
(.436)
6.64±1.34 -2.59
(.009)
No 97 (80.2) 97.07±7.59 51.79±8.78 3.69±0.65 7.40±0.93
NICU stay (days) 45.30±39.98
Ventilator treatment Yes 74 (61.2) 95.53±9.69 -0.01
(.994)
50.26±9.97 -1.29
(.197)
3.69±0.69 0.62
(.533)
7.21±1.13 -0.46
(.643)
No 47 (38.8) 96.77±6.86 52.55±8.66 3.61±0.68 7.31±0.95
Present feeding method Breast milk 25 (20.7) 97.80±6.87 2.25
(.325)
53.92±8.05 1.33
(.252)
3.95±0.67 2.87
(.061)
7.61±0.85 3.27
(.195)
Powdered milk 59 (48.8) 95.66±9.76 50.66±9.95 3.60±0.69 7.12±1.21
Complex 37 (30.6) 95.35±7.99 50.05±9.59 3.58±0.65 7.22±0.88
Present body weight (grams) 6440.5±2404.4

χ2KW=Kruskal-wallis test; Z=Mann-whitney U test.

Table 2

Relationships of Characteristics of Mothers and Premature Infants with Study Variables (N=121)

kjwhn-21-308-i002
Variables 1 2 3 4 5 6 7 8 9 10
r (p) r (p) r (p) r (p) r (p) r (p) r (p) r (p) r (p) r (p)
2 -.09 (.321)
3 .14 (.119) .22 (.015)
4 .11 (.223) -.20 (.021) .01 (.867)
5 .06 (.516) -.15 (.081) .01 (.849) .84 (<.001)
6 -.15 (.089) -.11 (.212) -.06 (.509) -.17 (.061) -.12 (.158)
7 .41 (<.001) -.39 (<.001) .11 (.203) .03 (.712) -.02 (.820) .06 (.493)
8 .19 (.031) .05 (.589) .09 (.294) .05 (.529) -.03 (.707) -.24 (.007) .08 (.346)
9 .19 (.029) .03 (.700) .11 (.215) -.05 (.540) -.02 (.754) -.11 (.232) .09 (.310) .40 (<.001)
10 -.06 (.465) .03 (.705) .07 (.396) .02 (.821) .06 (.460) -.06 (.469) -.22 (.013) .19 (.031) .29 (.001)
11 .18 (.039) .20 (.027) .22 (.015) .07 (.425) .09 (.329) -.26 (.003) -.06 (.495) .75 (<.001) .51 (<.001) .39 (<.001)

Spearman's rank correlation test; 1=mother's age; 2=parity-primiparous; 3=pregnancy intention; 4=birth weight; 5=gestational age; 6=congenital defect or severe complications; 7=length of marriage; 8=maternal attachment; 9=maternal identity; 10=marital intimacy; 11=maternal role development (MRD).

Table 3

Factors associated with Maternal Role Development in Mothers of Premature Infants Obtained by Hierarchical Multiple Analysis (N=121)

kjwhn-21-308-i003
Variables Categories Model 1 Model 2 Model 3 Model 4
β (p) β (p) β (p) β (p)
Control variables Age .12 (.163) .16 (.051) .08 (.267) .02 (.639)
Parity-primiparous .14 (.104) .14 (.081) .13 (.076) .15 (.006)
Pregnancy intention .14 (.104) .11 (.156) .10 (.163) .07 (.182)
Congenital defect or severe complications -.22 (.011) -.19 (.017) -.16 (.029) -.05 (.325)
Independent variables Marital intimacy .38 (<.001) .27 (.001) .21 (<.001)
Maternal identity .38 (<.001) .18 (.002)
Maternal attachment .60 (<.001)
R2 (ΔR2) .14 .29 (.14) .41 (.12) .70 (.28)
Adjusted R2 .11 .25 .38 .68
F (p) 4.95 (.001) 9.38 (<.001) 13.47 (<.001) 37.91 (<.001)

MRD=maternal role development; β=standardized regression coefficient; ΔR2=explained variance for each step.

Notes

This article is based on a part of the first author's master's thesis from Hanyang University.

Summary Statement

▪ What is already known about this topic?
Although maternal role development has significant effects on infant's optimal growth and development, little understanding has been given to associated factors of maternal role development among mothers of premature infant in the transition from hospital to their own home environment.
▪ What this paper adds?
Maternal attachment, maternal identity and marital intimacy are correlated and found as predictors for maternal role development in neonatal intensive care unit graduate mothers of premature infants. Maternal attachment is the most powerful predictor of maternal role development.
▪ Implications for practice, education and/or policy
Sustainable community-based family nursing interventions for developmentally supportive care includes assessment of attachment between mother and infant dyads with marital relationship quality for mothers of premature infants need to be developed.

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