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Table 3 The significant difference in mean PSS scores within categorical groups; (age and professional characteristics) among a sample of Pakistani dentists (n = 157)

From: Levels of perceived stress according to professional standings among dental surgeons of Karachi: a descriptive study

Groups with the significant difference in stress level N PSS score Mean ± SD F statistics (df) p-value
Age in years
20–29 115 19.01 ± 5.428 F =  5.032 (2154) − 0.197
40 and above 13 14.31 ± 5.154  
Years of experience
Up to 5 years 92 19.29 ± 5.230 F =  6.386 (2154) 0.001
 ≥ 11 years 36 15.64 ± 5.934  
Monthly income in (PKR)
5000–19,000 42 19.29 ± 4.539 F =  3.224 (4152) 0.029
100,000 and above 18 14.89 ± 7.128  
Monthly income in thousands (PKR)
Honoree (no pay) 09 21.67 ± 6.910 F =  3.224 (4152) 0.017
100,000 and above 18 14.89 ± 7.128  
Designation
House officers 60 18.93 ± 5.099 F =  3.591 (3153) 0.035
 ~ Asst./Asso./Prof 16 14.25 ± 6.506  
  1. Categories with only significant differences are shown above
  2. A p-value of < 0.05 was considered significant
  3.  ~ Asst. = Assistant Professor, Asso. = Associate Professor, Prof. = Professor