Table 1 Proportions of glove use for hair shampooing in hairdressing salons; separated by methods of assessment
From: Usage of gloves for hair shampooing in German hairdressing salons
Observation of shampoos | Telephone interview of salon owners | Comparison of proportion for glove use for hair shampooing | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Number of salons | Glove Usage | Glove Usage | ||||||||
Generally | For shampoos | |||||||||
Survey | Data collection | N | N | %a | N | %a | N | %b | χ 2 | P |
1 | August 2009 | 172 | 18 | 10.5 | 218 | 99.1 | 184 | 84.4 | 207.564 | <.001 |
2 | August 2010 | 69 | 9 | 13.0 | 199 | 99.5 | 159 | 79.9 | 95.068 | <.001 |
3 | August 2011 | 75 | 12 | 16.0 | - | - | - | - | - | - |
4 | August 2012 | 119 | 22 | 18.5 | 198 | 94.3 | 151 | 76.2 | 97.763 | <.001 |
Total | 435 | 61 | 14.0 | 615 | 98.0 | 494 | 80.3 | 446.824 | <.001 | |