Table 5

Comparison of mean systolic and diastolic blood pressures of the workers on consecutive days of intervention.

Day of intervention
Mean Systolic Blood Pressure (mm Hg)
p value
Mean Diastolic Blood Pressure (mm Hg)
p value

Day 1
127.8 ± 11.1
0.98
80.7 ± 8.8
0.95
Day 2
127.8 ± 11.8

80.6 ± 12.8






Day 2
127.8 ± 11.8
0.04*
80.6 ± 12.8
0.16
Day 3
123.4 ± 10.3

76.4 ± 8.6






Day 3
123.4 ± 10.3
0.03*
76.4 ± 8.6
0.001*
Day 4
117.5 ± 9.9

62.6 ± 7.8






Day 4
117.5 ± 9.9
0.08
62.6 ± 7.8
0.55
Day 5
113.8 ± 7.0

63.8 ± 8.0






Day 5
113.8 ± 7.0
0.68
63.8 ± 8.0
0.65
Day 6
114.6 ± 6.5

63.0 ± 5.5


* Difference significant; Student's t-test (two-tailed)

Haldiya et al. Environmental Health: A Global Access Science Source 2005 4:13   doi:10.1186/1476-069X-4-13