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Table 4 Odds ratios (and 95% confidence intervals) from multivariate logistic regression models assessing the association of reproductive health outcomes with cross-generational first sex

From: Age differences at sexual debut and subsequent reproductive health: Is there a link?

  STI diagnosis in previous 12 months n = 489 Did not use a family planning method at last sex n = 558
Age difference between respondent and first sexual partner   
   ≤ 4 years 1.00 1.00
   5 years to 9 years 0.93 (0.51 – 1.69) 0.67 (0.44 – 1.00)†
   ≥ 10 years 1.49 (0.61 – 3.66) 1.05 (0.52 – 2.10)
Years since sexual debut   
   ≥ 6 years 1.00 1.00
   3–5 years 0.79 (0.40 – 1.55) 1.08 (0.67 – 1.74)
   1–2 years 0.74 (0.33 – 1.66) 1.10 (0.63 – 1.93)
Ever pregnant   
   No 1.00 1.00
   Yes 1.28 (0.69 – 2.36) 0.49 (0.32 – 0.75)***
Clinic type   
   Youth center 1.00 1.00
   Women's reproductive health 0.40 (0.18 – 0.86)* 1.18 (0.75 – 1.87)
Socioeconomic status   
   Highest 1.00 1.00
   Middle 0.84 (0.41 – 1.68) 0.87 (0.52 – 1.45)
   Lowest 0.59 (0.27 – 1.26) 0.75 (0.44 – 1.28)
Religion   
   Catholic 1.00 1.00
   Protestant 0.84 (0.46 – 1.54) 0.72 (0.48 – 1.06)
   Other 1.55 (0.73 – 3.31) 0.46 (0.26 – 0.80)**
Employment status   
   Not employed 1.00 1.00
   Employed 0.62 (0.28 – 1.36) 2.05 (1.23 – 3.42)**
Current age   
   15–18 1.00 1.00
   19–22 1.48 (0.69 – 3.20) 0.95 (0.59 – 1.54)
   23–24 1.52 (0.59 – 3.93) 0.91 (0.49 – 1.69)
Relationship status   
   Not in union 1.00 1.00
   In union 1.62 (0.90 – 2.92) 0.88 (0.59 – 1.31)
Education level   
   Primary 1.00 1.00
   Secondary 1.41 (0.53 – 3.73) 0.83 (0.47 – 1.46)
   Higher 1.35(0.36 – 5.09) 1.20 (0.49 – 2.91)
  1. Notes: N's vary from Tables 3 due to missing data on control variables.
  2. †p = 0.052. * p < 0.05. ** p < 0.01. *** p < 0.001