Characteristic | Decision latitude (Job control) a | Psychological job demands (Job demand) a | Physical job demand b | |||
---|---|---|---|---|---|---|
Total | Total | Total | ||||
Low (n(%)) | High (n(%)) | Low (n(%)) | High (n(%)) | Low (n(%)) | High (n(%)) | |
Number of participants | 158 (46.1) | 185 (53.9) | 154 (44.9) | 189 (55.1) | 217 (63.3) | 126 (36.7) |
Maternal age c | 29.4 ± 3.1 | 30.7 ± 3.4 | 30.0 ± 3.4 | 30.2 ± 3.3 | 30.2 ± 3.2 | 29.9 ± 3.6 |
P-value | <0.001 | 0.52 | 0.40 | |||
≤30 years | 106 (67.1) | 102 (55.1) | 90 (58.4) | 118 (62.4) | 126 (58.1) | 82 (65.1) |
>30 years | 52 (32.9) | 83 (44.9) | 64 (41.6) | 71 (37.6) | 91 (41.9) | 44 (34.9) |
P-value | 0.02 | 0.45 | 0.20 | |||
Maternal Education | ||||||
≤ High school | 33 (20.9) | 25 (13.5) | 28 (18.2) | 30 (15.9) | 33 (15.2) | 25 (19.8) |
≥ University | 125 (79.1) | 160 (86.5) | 126 (81.8) | 159 (84.1) | 184 (84.8) | 101 (80.2) |
P-value | 0.07 | 0.57 | 0.27 | |||
Monthly family income | ||||||
< $2,000 | 22 (13.9) | 19 (10.3) | 20 (13.0) | 21 (11.1) | 26 (12.0) | 15 (11.9) |
$2,000-$4,000 | 90 (60.0) | 75 (40.5) | 81 (52.6) | 84 (44.4) | 106 (48.9) | 59 (46.8) |
< $4,000 | 46 (29.1) | 91 (49.2) | 53 (34.4) | 84 (44.4) | 85 (39.2) | 52 (41.3) |
P-value | <0.001 | 0.17 | 0.92 | |||
Sex | ||||||
Male | 74 (46.8) | 101 (54.6) | 75 (48.7) | 100 (52.9) | 112 (51.6) | 63 (50.0) |
Female | 84 (53.2) | 84 (45.4) | 79 (51.3) | 89 (47.1) | 105 (48.4) | 63 (50.0) |
P-value | 0.15 | 0.44 | 0.77 | |||
Birth Weight (kg) c | 3.28 ± 0.34 | 3.37 ± 0.35 | 3.33 ± 0.35 | 3.32 ± 0.35 | 3.36 ± 0.36 | 3.27 ± 0.32 |
P-value | 0.02 | 0.82 | 0.03 | |||
Gestational age (weeks) c | 39.1 ± 1.0 | 39.2 ± 1.1 | 39.3 ± 1.0 | 39.1 ± 1.1 | 39.2 ± 1.0 | 39.0 ± 1.1 |
P-value | 0.67 | 0.23 | 0.07 |