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Table 2 Socio-demographic characteristics of study participants

From: Time-to-pregnancy and pregnancy outcomes in a South African population

Variables n (%)
Current age  
   < 20 22 (2.0)
   20- 29 362 (32.4)
   30 - 39 407 (36.4)
   ≥ 40 326 (29.2)
Age at most recent pregnancy*  
   < 20 131 (12.2)
   20- 29 563 (52.5)
   30 - 39 349 (32.6)
   ≥ 40 29 (2.7)
Current Education  
   None 35 (3.1)
   Primary 205 (18.3)
   Secondary 667 (59.5)
   Tertiary 214 (19.1)
Social group by income  
   Low 686 (61.9)
   Middle 245 (22.1)
   High 177 (16.0)
Employment  
   Currently 419 (37.4)
   During pregnancy* 449 (41.9)
Smoking  
   Ever smoked cigarettes 190 (17.0)
   Ever used snuff 202 (18.1)
   Smoked during recent pregnancy* 182 (17.0)
Alcohol consumption during recent pregnancy*  
   Never 867 (85.3)
   Sometimes 116 (11.4)
   Usually 33 (3.2)
  1. Data is presented for all participants (n = 1121) except for variables* at most recent pregnancy (n = 1074)