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Table 3 Distribution of knowledge scores on selected Non Communicable Diseases

From: Knowledge of non-communicable diseases and practices related to healthy lifestyles among adolescents, in state schools of a selected educational division in Sri Lanka

Score on knowledge Frequency (%)
N = 634
Median Mode Mean (SD)
Non-Communicable Diseases: Total Score = 11
 <60% 372 (58.7%) 5 9 5.5
(3.3)
 ≥60% 262 (41.3%)
Diabetes mellitus: Total Score = 31
 <60% 420 (66.2%) 16.5 18 16.0
(5.2)
 ≥60% 214 (33.8%)
Hypertension: Total Score = 24
 <60% 516 (81.4%) 10 9 10.4
(4.5)
 ≥60% 118 (18.6%)
Coronary artery disease: Total Score = 23
 <60% 277 (43.7%) 14 15 13.4
(4.7)
 ≥60% 357 (56.3%)
Stroke: Total Score = 23
 <60% 418 (65.9%) 11 14 11.3
(6.6)
 ≥60% 216 (34.1%)
Cancers: Total Score = 34
 <60% 391 (61.7%) 19 21 18.2
(6.0)
 ≥60% 243 (38.3%)
Diet: Total Score = 37
 <60% 159 (25.1%) 27 31 25.9
(6.6)
 ≥60% 475 (74.9%)
Physical activity: Total Score = 11
 <60% 275 (43.4%) 7 10 6.8
(2.9)
 ≥60% 359 (56.6%)
Smoking: Total Score = 10
 <60% 324 (51.1%) 5 5 5.4
(1.8)
 ≥60% 310 (48.9%)
Alcohol Consumption: Total Score = 12
 <60% 371 (58.5%) 7 7 6.9
(3.2)
 ≥60% 263 (41.5%)
Overall: Total Score = 216
 <60% 362 (57.1%) 124 139 119.7
(31.0)
 ≥60% 272 (42.9%)