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Table 4 Statistical analysis of the mean difference between CO and ST for productive categories only (paired t test)

From: Comparing time and motion methods to study personnel time in the context of a family planning supply chain intervention in Senegal

Stockroom managers’ relative time Mean (μ) Mean difference (MD)
[95% CI] ST − x̄CO [95% CI]
Productive categories CO ST CO − ST
FP productive stockroom activities 7.8% 10.8% − 3.0% [− 7.4 to 1.4%]‡
[3.2–12.4%] [8.04–13.5%]
Other productive stockroom activities 76.0% 72.6% 3.4% [− 2.8 to 9.6%] ‡
[68.4–83.6%] [67.2–78.0%]
Productive other 15.7% 16.8% − 0.1% [− 6.3 to 6.0%] ‡
[10.1–21.2%] [10.5–21.1%]
  1. *p < 0.001
  2. p > 0.05