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Table 2 Baseline parent characteristics

From: Sleep patterns and psychosocial health of parents of preterm and full-born infants: a prospective, comparative, longitudinal feasibility study

  Group A. Parents of preterm infants Group B. Parents of full-born infants
  Mothers, n = 25 (100%)
(Responders, n = 16)
Fathers, n = 25 (100%)
(Responders, n = 14)
Mothers, n = 76 (100%)
(Responders, n = 58)
Fathersb, n = 76 (100%) (Responders, n = 46)
  Median (min–max) Median (min–max) Median (min–max) Median (min–max)
Age 30.5 (27.0–36.0) 32.0 (27.0–36.0) 31.5 (22.0–42.0) 33.0 (25.0–44.0)
Body mass index (kg/m2) 25.1 (19.9–39.8) 25.3.0 (19.6–34.4) 24.4 (19.6–38.6) 26.6 (20.7–35.9)
  n (%) n (%) n (%) n (%)
Ethnicity     
 Norway 15 (93.8) 13 (92.9) 50 (86.2) 42 (91.3)
 Nordic Country 1 (6.3)   1 (1.7) 2 (4.4)
 Europe    2 (3.4) 1 (2.2)
 Asia    2 (3.4)  
 South-America   1 (7.1) 2 (3.4) 1 (2.2)
 Africa    1 (1.7)  
Parity     
 0a 12 (75.0) 11 (78.6) 38 (65.5) 29 (63.0)
 1 4 (25.0) 3 (21.4) 14 (24.1) 10 (21.7)
 2    5 (8.6) 6 (13.0)
 3    1 (1.7) 1 (2.2)
Education (level/years)     
 Primary school (up to 10 years)     1 (2.2)
 Secondary school (up to 13 years) 4 (25.0) 7 (50.0) 10 (17.0) 9 (20.0)
 University/college (up to 4 years) 3 (18.8) 4 (28.6) 22 (37.9) 12 (26.1)
 University/college (> 4 years) 8 (50.0) 3 (21.4) 26 (44.8) 22 (47.8)
 Other 1 (6.3)    2 (4.3)
Annual income (NOK)     
 0–399,000 5 (31.3) 3 (21.4) 12 (20.7) 7 (15.6)
 400,000–499,000 3 (18.8) 3 (21.4) 18 (31.0) 4 (8.7)
  ≥ 500,000 8 (50.0) 8 (57.1) 28 (48.3) 35 (76.1)
Employment status     
 Non-income-generating work situation 1 (6.3) 2 (14.3) 6 (10.3) 3 (6.5)
 Income-generating work situation 15 (93.8) 12 (85.7) 52 (89.7) 43 (93.5)
Missing (nonresponders) 9 (36.0) 11 (44.0) 18 (23.7) 30 (38.3)
  1. a First-time parents (primiparas)
  2. b Including non-birth-giving mothers