Table 3

Caffeinated beverages according to the severity of dysmenorrhoea

VariablesDysmenorrhoea (n (%))P value
No (486)Mild (574)Moderate-to-severe (92)
Tea0.216
 No308 (40.8)384 (50.9)62 (8.2)
 Yes178 (44.7)190 (47.7)30 (7.5)
Green tea0.012
 No347 (40.2)443 (51.3)74 (8.6)
 Yes139 (48.3)131 (45.5)18 (6.3)
Black tea0.337
 No413 (42.7)481 (49.7)74 (7.6)
 Yes73 (39.7)93 (50.5)18 (9.8)
Oolong tea0.033
 No434 (41.3)528 (50.3)88 (8.4)
 Yes52 (51.0)46 (45.1)4 (3.9)
Coffee0.027
 No275 (43.9)317 (50.6)34 (5.4)
 Yes211 (40.1)257 (48.9)58 (11.0)
Soda (Coca-Cola, Pepsi)0.047
 No335 (43.7)381 (49.7)51 (6.6)
 Yes151 (39.2)193 (50.1)41 (10.6)
Energy beverages0.050
 No462 (42.7)539 (49.8)81 (7.5)
 Yes24 (34.3)35 (50.0)11 (15.7)
  • P value was obtained by Kruskal-Wallis test.