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Table 1 Variables, instruments/composition and scaling/scoring (as used in the main structural equation models)

From: The role of intimate partner violence and other health-related social factors on postpartum common mental disorders: a survey-based structural equation modeling analysis

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) • TWEAK (Tolerance; Worried; Eyeopener; Amnesia; K/Cut-down) [54, 55] → women Sum of item scores (0–7) [TWEAK] (0–4) [CAGE] Joint score (women and partner)
• CAGE (Cut-down; Annoyed; Guilty; Eye-opener) [5658] → 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) • CTS2 (Revised Conflict Tactics Scale) [6062] 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) • CTS2 (Revised Conflict Tactics Scale) [6062] 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) • SRQ-20 (Self-Reporting Questionnaire) [3, 63, 65, 66, 69] Sum of item scores (0–20) • Maximum (worst) → 20 points (+ve)
     • Minimum (best) → 0 points