Table 1 Summary of baseline demographic data (N = 251)

Age in years mean (sd)

BMI (kg/m²) mean (sd)

Gestation age at booking visit mean (sd)

Gestation age at OGTT screening mean (sd)

Gravidity n (%)

 Primegravida

Parity n (%)

 ≤1

 2–4

 ≥5

Age groups (years) n (%)

 ≥35

BMI (kg/m²) n (%)

 ≥25

Occupation n (%)

 Unskilled

 Skilled

 Unemployed

Level of education n (%)

 Primary level and below

 Secondary level

 Tertiary

HIV positive n = 249

Number of ANC visits n = 224 (%)

 <4

 ≥4

Presence of risk factors to hyperglycaemia

 No risk factor

 ≥1 risk factor