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Table 1 Definitions of all the possible sequence states

From: Patterns of engagement in HIV care during pregnancy and breastfeeding: findings from a cohort study in North-Eastern South Africa

State

Definition

Unknown HIV

No health facility records of an HIV diagnosis, or ART initiation before the pregnancy or breastfeeding period.

HIV+ no ART

Following HIV diagnosis, ART not initiated, or ART initiated but without any follow-up visits immediately following ART initiation.

On ART

At least one health facility visit following the ART initiation visit. Women remained on ART up to their next scheduled visit.

Late

Between 7 and 90 days late for a scheduled health facility visit following ART initiation.

LTFU

More than 90 days late for a scheduled health facility visit following ART initiation.

Deceased

From the date of death extracted from HDSS records.

Transferred

A record of treatment collection from a health facility within the Agincourt HDSS other than where ART initiation occurred.

Reengaged

Restarted treatment at the same health facility where ART initiation occurred following LTFU.

Migration

Out migrated from the HDSS with no evidence of health facility visits following the migration date.