Pregnant workers’ work status, work advice and adjustments at 16, 24 and 32 weeks of pregnancy*
| 16 weeks of pregnancy | 24 weeks of pregnancy | 32 weeks of pregnancy | |||||||||||||
| Intervention group n=119 | Control group n=122 | RR | 95% CI | P value | Intervention group n=105 | Control group n=117 | RR | 95% CI | P value | Intervention group n=87 | Control group n=101 | RR | 95% CI | P value | |
| Current work status | x | ||||||||||||||
| Normal working hours | 118 (99%)† | 122 (100%)† | Ref | 89 (85%) | 100 (86%) | Ref | 59 (68%) | 56 (55%) | Ref | ||||||
| Part time due to illness | 1 (1%)† | 0† | 0.897 | 8 (8%) | 8 (7%) | 0.822 | 8 (9%) | 9 (9%) | 0.744 | ||||||
| No work due to illness | 0 | 0 | 7 (7%) | 5 (4%) | 0.431 | 11 (13%) | 10 (10%) | 0.928 | |||||||
| Pregnancy leave | 0 | 0 | 1 (1%) | 4 (3%) | 0.261 | 9 (10%) | 26 (26%) | 0.42 | 0.21 to 0.83 | 0.010 | |||||
| Increase complaints | 37 (31%) | 39 (32%) | 0.884 | 44 (42%) | 45 (39%) | 0.601 | 52 (52%) | 42 (42%) | 0.780 | ||||||
| Information from employer when reporting pregnancy | |||||||||||||||
| Yes‡ | NA | NA | 17/99 (17%) | 34/117 (31%) | 0.55 | 0.33 to 0.92 | 0.019 | 12/84 (14%) | 33/98 (35%) | 0.41 | 0.23 to 0.74 | 0.001 | |||
| Information about‡ | |||||||||||||||
| Work adjustments | NA | NA | 6/99 (6%) | 20/117 (18%) | 0.33 | 0.14 to 0.79 | 0.007 | 5/87 (6%) | 20/101 (21%) | 0.28 | 0.11 to 0.71 | 0.003 | |||
| Pregnancy/maternity leave | NA | NA | 16/99 (16%) | 27/117 (25%) | 0.126 | 12/87 (14%) | 28/101 (30%) | 0.48 | 0.26 to 0.88 | 0.013 | |||||
| Advice to adjust work from | |||||||||||||||
| Midwife and obstetrician | 11 (9%) | 2 (2%) | 5.64 | 1.28 to 24.9 | 0.010 | 41 (39%) | 21 (18%) | 2.18 | 1.38 to 3.43 | 0.001 | 36 (41%) | 29 (29%) | 0.069 | ||
| Occupational physician | 2 (2%) | 0 | 0.243 | 6 (6%) | 11 (9%) | 0.208 | 11 (13%) | 12 (12%) | 0.874 | ||||||
| Manager or staff advisor | 2 (2%) | 6 (5%) | 0.281 | 6 (6%) | 14 (12%) | 0.104 | 10 (11%) | 17 (17%) | 0.284 | ||||||
| Own initiative | 11 (9%) | 16 (13%) | 0.498 | 21 (20%) | 30 (26%) | 0.318 | 31 (36%) | 29 (29%) | 0.310 | ||||||
| Realised work adjustments | 17 (14%) | 22 (18%) | 0.430 | 22 (21%) | 37 (32%) | 0.078 | 32 (37%) | 45 (45%) | 0.280 | ||||||
| Less physically demanding | 4 (3%) | 7 (6%) | 0.377 | 2 (2%) | 9 (8%) | 0.184 | 10 (12%) | 13 (13%) | 0.774 | ||||||
| Less standing or walking | 4 (3%) | 9 (7%) | 0.168 | 6 (6%) | 6 (5%) | 0.847 | 11 (13%) | 11 (11%) | 0.709 | ||||||
| Fewer hours/day | 5 (4%) | 6 (5%) | 0.726 | 8 (8%) | 12 (10%) | 0.783 | 19 (22%) | 15 (15%) | 0.215 | ||||||
| More working from home | 5 (4%) | 7 (6%) | 0.524 | 3 (3%) | 10 (9%) | 0.334 | 8 (9%) | 10 (10%) | 0.870 | ||||||
*Complete results in online supplemental file C.
†At start of pregnancy.
‡Self-employed participants excluded: 24 weeks n=13 (6%), 32 weeks n=10 (5%).
NA, not applicable, not in questionnaire 1 (16 weeks of pregnancy); RR, relative risk.