Background
Methods
Participants
Variables and measurements
Variable | (mnemonic) | Instrument/composition | Scaling | Scoring (categorization) |
---|---|---|---|---|
Brazilian Criterion of Economic Classification | (BCEC) | • Household assets: TV set, DVD set, radio, vacuum cleaner, washing machine, refrigerator, freezer, bathroom, car | Sum of item scores (0–34) | • Stratum A (highest) → score ≥ 25 |
• Stratum B → score ≥ 17-24 | ||||
• Stratum C → score ≥ 11-16 | ||||
• Presence of maid in the household | • Stratum D → score ≥ 6-10 | |||
• Educational status of the main breadwinner | • Stratum E (lowest) → score ≤ 5 | |||
Household conditions | (HOUSE) | • Household density: people per room | Sum of item scores (0–7) | • Maximum (best) → 7 points |
• Type of house floor | • Minimum (worst) → 0 | |||
• Type of garbage/waste disposal system | ||||
• Type of sewage | ||||
Women’s schooling achievements | (EDUC) | • Number of school years concluded | One year intervals | • Maximum → 12 years + |
• Minimum → 0 | ||||
Stressful live events taking place during the latest pregnancy | (STRESS) | • Death of the partner or a close relative | Sum of item scores (0–5) | • Maximum → 5 points (events) |
• Job loss by the women | • Minimum → 0 points (events) | |||
• Job loss by her partner | ||||
• Forced eviction from home | ||||
• Perceived unusual financial problems | ||||
Women’s age at the beginning of the latest pregnancy | (AGE) | • Number of years | One year intervals | • Maximum → 44 years |
• Minimum → 13 years | ||||
Marital status (proxy to the degree of conjugal instability) | (INSTAB) | • Weather woman/mother currently had a partner or not during pregnancy | Composition | • Stable → woman reporting the same spouse throughout the latest pregnancy and thereafter, conditional on the partner being the father of the current child |
• Weather woman/mother currently had a partner or not during the post natal period | ||||
• Weather the referred to partner was the same in both periods | • Unstable → otherwise | |||
• Weather partner was the father of the child | ||||
Children under five at home (proxy to the level of women’s work load and burden) | (UNDR5) | • Simple count | Sum of item scores (0–3) | • Maximum (worst) → 3 children |
• Minimum → 1 child | ||||
Alcohol misuse during pregnancy (couple) | (ALC) | Sum of item scores (0–7) [TWEAK] (0–4) [CAGE] | Joint score (women and partner) | |
• Maximum (worst) → 10 points | ||||
• Minimum (best) → 0 points | ||||
Illicit drugs abuse during pregnancy (couple) | (DRUGS) | • NSDUQ (the Non-Student Drugs Use Questionnaire (NSDUQ) [59] (used on women and partners) | Sum of item scores (0–4) | Joint score (women and partner) |
• Maximum (worst) → 5 points | ||||
• Minimum (best) → 0 points | ||||
Psychological intimate partner violence occurring during pregnancy (couple) | (PSYIPV) | Sum of item scores (0–8) | Joint score (women and partner) | |
• Maximum (worst) → 16 points (+ve) | ||||
• Minimum (best) → 0 points | ||||
Physical intimate partner violence occurring during pregnancy (couple) | (PHYIPV) | Sum of item scores (0–12) | Joint score (women and partner) | |
• Maximum (worst) → 24 points (+ve) | ||||
• Minimum (best) → 0 points | ||||
Common Mental Disorders (women) | (CMD) | Sum of item scores (0–20) | • Maximum (worst) → 20 points (+ve) | |
• Minimum (best) → 0 points |
Socio-economic position
Stressors
Substance use
Intimate partner violence
Common mental disorders
Statistical analysis
Results
Profile of the study population
Variables | Univariate | CMD (+ve) | |||
---|---|---|---|---|---|
n | % | n | % | p-value | |
Socio-economic strata (BCEC) | |||||
A
| 15 | 1.9 (0.9 - 2.8) | 2 | 13.3 (3.1 - 41.8) | 0.011 |
B
| 81 | 10.0 (7.9 - 12.1) | 12 | 14.8 (8.5 - 24.3) | |
C
| 369 | 45.5 (42.1 - 49.0) | 86 | 23.3 (19.2 - 27.9) | |
D
| 330 | 40.7 (37.3 - 44.1) | 100 | 30.3 (25.5 - 35.4) | |
E
| 15 | 1.9 (0.9 - 2.8) | 6 | 40.0 (18.5 - 66.0) | |
Household condition (score) | |||||
7 (best) | 199 | 24.6 (21.6 - 27.5) | 33 | 16.5 (12.0 - 22.4) | < 0.001 |
6
| 235 | 29.0 (25.9 - 32.1) | 49 | 20.8 (16.1 - 26.5) | |
≤ 5 (worse) | 376 | 46.4 (43.0 - 49.9) | 124 | 33.0 (28.4 – 37.9) | |
Schooling (women) | |||||
> 9 years
| 295 | 36.4 (33.1 - 39.7) | 49 | 16.6 (12.7 - 21.3) | < 0.001 |
≤ 9 years
| 515 | 63.5 (60.2 - 66.9) | 245 | 83.3 (78.6 - 87.2) | |
Women’s age at the beginning of latest pregnancy | |||||
> 35 years
| 70 | 8.6 (6.7 - 10.6) | 9 | 12.3 (06.5 - 22.1) | 0.003 |
20 - 35 years
| 517 | 63.8 (60.5 - 67.1) | 138 | 24.9 (21.4 - 28.6) | |
< 20 years
| 223 | 27.5 (24.4 - 30.6) | 59 | 32.2 (25.8 - 39.3) | |
Conjugal instability | |||||
No
| 701 | 86.5 (84.2 - 88.9) | 142 | 21.8 (18.8 - 25.1) | < 0.001 |
Yes
| 109 | 13.5 (11.1 - 15.8) | 64 | 40.5 (33.1 - 48.4) | |
Number of children under 5 years | |||||
One
| 601 | 74.2 (71.2 - 77.2) | 135 | 22.5 (19.3 - 26.0) | 0.002 |
Two
| 173 | 21.4 (18.5 - 24.2) | 55 | 31.8 (25.3 - 39.1) | |
Three
| 36 | 4.4 (3.0 - 5.9) | 16 | 44.4 (29.1 - 60.9) | |
Stressful life events during pregnancy | |||||
None
| 389 | 48.0 (44.6 - 51.4) | 45 | 11.6 (8.7 - 15.2) | < 0.001 |
One event
| 281 | 34.7 (31.4 - 38.0) | 93 | 33.1 (27.8 - 38.8) | |
Two or more events
| 140 | 17.3 (14.7 - 19.9) | 68 | 48.6 (40.4 - 56.9) | |
Misuse of alcohol | |||||
No
| 421 | 52.0 (48.5 - 55.4) | 79 | 18.8 (15.3 - 22.8) | < 0.001 |
Woman only
| 202 | 24.9 (21.9 - 27.9) | 59 | 29.2 (23.3 - 35.9) | |
Partner only
| 117 | 14.4 (12.0 - 16.9) | 43 | 36.8 (28.5 - 45.9) | |
Both
| 70 | 8.6 (6.7 - 10.6) | 25 | 35.7 (25.3 - 47.6) | |
Abuse of illicit drugs | |||||
No
| 695 | 85.8 (83.4 - 88.2) | 154 | 22.2 (19.2 - 25.4) | < 0.001 |
Woman only
| 11 | 1.4 (0.6 - 2.1) | 6 | 54.5 (25.6 - 80.7) | |
Partner only
| 82 | 10.1 (8.0 - 12.2) | 33 | 40.2 (30.2 - 51.2) | |
Both
| 22 | 2.7 (1.6 - 3.8) | 13 | 59.1 (37.7 - 77.5) | |
Psychological IPV during pregnancy | |||||
None
| 146 | 18.0 (15.4 - 20.7) | 19 | 13.0 (8.4 - 19.5) | < 0.001 |
One event
| 77 | 9.5 (7.5 - 11.5) | 18 | 23.4 (15.2 - 34.2) | |
Two or more events
| 587 | 72.5 (69.3 – 75.4) | 169 | 28.8 (25.3 - 32.6) | |
Physical IPV during pregnancy | |||||
None
| 504 | 62.2 (58.9 - 65.6) | 86 | 17.1 (14.0 - 20.6) | < 0.001 |
One event
| 87 | 10.7 (8.6 - 12.9) | 27 | 31.0 (22.2 - 41.6) | |
Two or more events
| 219 | 27.0 (24.0 - 30.2) | 93 | 42.5 (36.1 - 49.1) |
Main findings
Path |
β(95% CI) | ||||
---|---|---|---|---|---|
PSYIPV → CMD | 0.112 (0.030 - 0.194) |
**
| |||
PHYIPV → CMD | 0.227 (0.134 - 0.321) |
***
| |||
STRESS → CMD | 1.145 (0.877 - 1.413) |
***
| |||
F
SEP
→ CMD | −0.982 (−1.294 - –0.669) |
***
| |||
PSYIPV → PHYIPV | 0.440 (0.386 - 0.494) |
***
| |||
ALC → PHYIPV | 0.129 (0.067 - 0.192) |
*
| |||
DRUGS → PHYIPV | 1.239 (1.095 - 1.384) |
**
| |||
ALC → PSYIPV | 0.143 (0.022 - 0.263) |
***
| |||
DRUGS → PSYIPV | 0.667 (0.271 - 1.062) |
***
| |||
STRESS → PSYIPV | 0.557 (0.297 - 0.817) |
***
| |||
INSTAB → PSYIPV | 1.090 (0.719 - 1.462) |
***
| |||
UNDR5 → PSYIPV | 0.429 (0.127 - 0.730) |
***
| |||
STRESS → ALC | 0.379 (0.222 - 0.536) |
***
| |||
INSTAB → ALC | 0.676 (0.476 - 0.876) |
***
| |||
UNDR5 → ALC | −0.355 (−0.557 - –0.154) |
***
| |||
F
SEP
→ ALC | −0.496 (−0.733 - –0.258) |
***
| |||
STRESS → DRUGS | 0.059 (0.009 - 0.108) |
*
| |||
AGE → DRUGS | −0.010 (−0.018 - –0.003) |
**
| |||
INSTAB → DRUGS | 0.183 (0.127 - 0.240) |
***
| |||
UNDR5 → DRUGS | −0.094 (−0.162 - –0.025) |
**
| |||
F
SEP
→ DRUGS | −0.160 (−0.232 - –0.088) |
***
| |||
F
SEP
→ STRESS | −0.188 (−0.263 - –0.114) |
***
| |||
F
SEP
→ AGE | 0.915 (0.380 - 1.449) |
**
| |||
AGE → INSTAB | −0.041 (−0.056 - –0.026) |
***
| |||
F
SEP
→ INSTAB | −0.312 (−0.443 - –0.182) |
***
| |||
F
SEP
→ UNDR5 | −0.455 (−0.591 - –0.319) |
***
| |||
BCEC → F
SEP
†
| 0.512 (0.434 - 0.591) |
***
| |||
HOUSE → F
SEP
†
| 0.694 (0.624 - 0.764) |
***
| |||
EDUC → F
SEP
†
| 0.582 (0.506 - 0.657) |
***
| |||
Model Adjustment
| |||||
RMSEA | 0.042 | (90% CI: 0.031 - 0.053); p ≤ .05 = 0.883 | |||
CFI | 0.967 | ||||
TLI | 0.942 |