Table 1.
Baseline characteristics of 2,475 wellness cohort women recruited between August 2003 and May 2009 and including both women who had at least one cervical smear and those who did not have a smear on record.
| Women without a cervical smear result [95% CI or IQR] (n=150)1 | Women with an interpretable cervical smear result [95% CI or IQR] (2,325) | p-value2 | |
|---|---|---|---|
| Median age (yrs) | 32.8 [29.1 – 38.1] | 31.7 [27.5 – 36.8] | 0.060 |
| Median CD4 count (cells/mm3) | 356 [215 – 474] | 312 [168 – 486] | 0.123 |
| Median weight (kg) | 65.5 [56.7 – 79.4] | 63.4 [54.9 – 74.3] | 0.105 |
| Proportion ever smokers (%) | 20.1 [14.2 – 27.1] | 15.9 [14.4 – 17.4] | 0.126 |
| Proportion with STI symptoms at baseline (%) | 11.0 [5.9 – 16.0] | 20.8 [19.1 – 22.5] 3 | 0.004 |
| Median monthly income (ZAR) | 1,200 [420 – 2,150] | 1,000 [590 – 1,900] | 0.074 |
| BMI (kg/m2) | 26.5 [22.5 – 31.0] | 25.0 [21.5 – 29.5] 4 | 0.041 |
| Median number of sexual partners in the last 6 months | 1 [1 – 1] | 1 [1 – 1] 5 | 0.444 |
| Proportion using hormonal contraception at first visit (%) | 30.1 [21.6 – 38.5] | 32.7 [30.5 – 35.0] 6 | 0.560 |
Twelve of the 150 women with missing cervical data had a cervical smear taken but it was un-interpretable and a repeat smear was not done;
Differences between groups assessed through equality of medians tests (χ2) or equality of proportions as appropriate;
the denominator for this calculation is 2,435;
the denominator for this calculation is 1,749;
the denominator for this calculation is 850;
the denominator for this calculation is 1,765
STI – sexually transmitted infection; HH – household; BMI – body mass index; IQR – interquartile range CI- Confidence intervals. ZAR- South African Rands