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. 2019 Jul 8;20:407. doi: 10.1186/s13063-019-3473-6

Table 4.

Intent-to-treat effect of the intervention on choice of PPIUD

Dependent variable: choice of PPIUD
Est. 95% CI Est. 95% CI
Post-treatment (ref: pre-treatment) 0.024** 0.002–0.045 0.027** 0.000–0.054]
Woman’s age (ref: < 20 years)
 20–24 years − 0.013 − 0.039–0.014
 25–29 years − 0.018 − 0.063–0.028

  ≥ 30 years

Woman’s schooling (ref: no schooling)

− 0.016 − 0.071–0.039
 Some primary 0.010 − 0.006–0.026
 Some lower secondary 0.018 −0.024–0.059
 Some higher secondary 0.012 −0.009–0.033
 Some college 0.007 −0.012–0.027
Time to travel from home to hospital (ref: < 1 h)
 1–3 h − 0.001 − 0.009–0.007
  ≥ 3 h − 0.001 −0.009–0.006
Parity (ref: 1)
 2 0.026 − 0.016–0.068
 3+ −0.019 − 0.073–0.035
Ethnicity (ref: Sinhalese)
 Sri Lankan Tamil 0.043 −0.090–0.176
 Indian Tamil 0.058 −0.138–0.254
 Sri Lankan Moor −0.002 − 0.034–0.030
 Other 0.054 − 0.071–0.178
Male child born −0.002 − 0.006–0.002
 Constant 0.021 − 0.019–0.062 0.178 − 0.224–0.580
Observations 39,084 36,309
R-squared 0.253 0.253

*** p < 0.01, ** p < 0.05, * p < 0.1

Note: Difference from null tested using wild-cluster bootstrap method. All regression models adjusted for hospital and month fixed effects