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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