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Table 1 Characteristics of study population

From: Infant crying problems related to maternal depressive and anxiety symptoms during pregnancy: a prospective cohort study

  Mothers of infants with crying problems Mothers of infants without crying problems    
  N (%) N (%) df X2-test value p-value
Total 235 (18.2) 1055 (81.8)    
Age      3 3.669 0.300
< 25 years old 45 (19.2) 184 (17.5)    
 26–30 years old 90 (38.3) 392 (37.3)    
 31–35 years old 75 (31.9) 312 (29.7)    
> 36 years old 25 (10.6) 162 (15.4)    
Civil status      2 0.884 0.643
 Living with partner 223 (94.9) 1002 (95.0)    
 Living with others 4 (1.7) 11 (1.0)    
 Living alone 8 (3.4) 42 (4.0)    
Other children living at home      1 9.717 0.002
 No 118 (50.2) 413 (39.2)    
 Yes 117 (49.8) 642 (60.9)    
Parity      2 10.630 0.005
 Nullipara 127 (54.0) 453 (42.9)    
 Primipara 80 (34.0) 414 (39.2)    
 Multipara 28 (11.9) 188 (17.8)    
Educational level      3 2.730 0.435
 No higher education 50 (21.3) 277 (26.3)    
 Education - 3 years 32 (13.6) 135 (12.8)    
 Education - 4 or 5 years 97 (41.3) 395 (37.4)    
 Education > 5 years 56 (23.8) 248 (23.5)    
Occupation      4 0.797 0.939
 Employed 173 (73.6) 802 (76.0)    
 Student 34 (14.5) 142 (13.5)    
 Unemployed 12 (5.1) 52 (4.9)    
 Sick leave 5 (2.1) 19 (1.8)    
 Other 11 (4.7) 40 (3.8)    
Current household income      5 3.537 0.472
< 299,000 DKK 33 (14.0) 120 (11.4)    
 300,000–599,000 DKK 64 (27.2) 325 (30.8)    
 600,000–899,000 DKK 80 (34.0) 355 (33.7)    
> 900,000 DKK 21 (8.9) 115 (10.9)    
 Decline to answer 37 (15.7) 140 (13.3)    
Smoking during pregnancy      1 2.463 0.117
 No 222 (95.7) 975 (92.9)    
 Yes 10 (4.3) 75 (7.1)    
Drinking during pregnancy      1 0.101 0.751
 No 231 (99.1) 1043 (99.3)    
 Yes 2 (0.9) 7 (0.7)    
Drugs during pregnancy      1 0.663 0.416
 No 228 (100) 1031 (99.7)    
 Yes 0 (0.0) 3 (0.3)    
  1. This table shows socioeconomic characteristics and lifestyle habits of mothers of infants with and without crying problems