Additional file 2: of Psychosocial factors associated with early initiation and frequency of antenatal care (ANC) visits in a rural and urban setting in South Africa: a cross-sectional survey

Bivariate analyses of associations between all demographic and all psychosocial factors examined against frequency of ANC attendance among women aged 18–44 years who reported ever being pregnant (N=829): Comparison for adequate ANC attendance. (DOCX 32 kb

Association between wind speed and room ventilation (m³/hour) for measurements with the roof turbine and air intake grate, all rooms combined.

<p>Association between wind speed and room ventilation (m³/hour) for measurements with the roof turbine and air intake grate, all rooms combined.</p

Median ACH, range and number of measurements that are above the WHO recommendation for each room, comparing window only and turbine and grate only.

<p>*Calculated by using the measurement of actual flow through the turbine, at the same time as overall ACH measurement.</p

Distribution of measured wind speed (km/hr) by clinic.

<p>Distribution of measured wind speed (km/hr) by clinic.</p

Installation of roof turbines and air-intake grates.

<p>A: Roof turbine with ducting from roofline to ceiling, B: roof turbine without ducting (no roof space), C: photograph of outside of clinic room, showing roof turbine and air-intake grate, and D: design of louvred air-intake grates used (effective opening area is 0.68 of actual grate area).</p